B\u1ea1n c\u1ea7n t\u00ednh ph\u1ea7n tr\u0103m nhanh nh\u01b0ng kh\u00f4ng bi\u1ebft b\u1ea5m n\u00fat n\u00e0o? M\u1ed7i thi\u1ebft b\u1ecb \u2014 t\u1eeb m\u00e1y t\u00ednh Casio, Excel \u0111\u1ebfn \u0111i\u1ec7n tho\u1ea1i \u2014 c\u00f3 c\u00e1ch thao t\u00e1c ho\u00e0n to\u00e0n kh\u00e1c nhau<\/strong>. Bi\u1ebft \u0111\u00fang thao t\u00e1c gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 tr\u00e1nh sai s\u1ed1 kh\u00f4ng \u0111\u00e1ng c\u00f3.<\/p>\n

B\u00e0i n\u00e0y h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch t\u00ednh % tr\u00ean m\u00e1y t\u00ednh<\/strong> cho t\u1eebng thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3: m\u00e1y t\u00ednh Casio (b\u1ecf t\u00fai v\u00e0 khoa h\u1ecdc), Excel\/Google Sheets, iPhone, Android, Windows Calculator v\u00e0 Mac. M\u1ed7i ph\u1ea7n \u0111\u1ec1u c\u00f3 v\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u00e0 c\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p.<\/p>\n

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\u26a1 T\u00ednh % Nhanh H\u01a1n \u2014 Kh\u00f4ng C\u1ea7n B\u1ea5m T\u1eebng B\u01b0\u1edbc<\/h3>\n
Nh\u1eadp s\u1ed1 v\u00e0o tool \u2192 k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c. H\u1ed7 tr\u1ee3 t\u1ea5t c\u1ea3 lo\u1ea1i b\u00e0i to\u00e1n %.<\/p>\n
D\u00f9ng Tool T\u00ednh % Online \u2192<\/a>\n<\/div>\n
C\u00e1ch T\u00ednh % Tr\u00ean M\u00e1y T\u00ednh Casio<\/h2>\n
M\u00e1y t\u00ednh Casio l\u00e0 c\u00f4ng c\u1ee5 ph\u1ed5 bi\u1ebfn nh\u1ea5t \u1edf Vi\u1ec7t Nam \u2014 t\u1eeb m\u00e1y b\u1ecf t\u00fai 8 ch\u1eef s\u1ed1 \u0111\u1ebfn d\u00f2ng khoa h\u1ecdc fx-570. C\u00e1ch d\u00f9ng n\u00fat %<\/strong> tr\u00ean t\u1eebng lo\u1ea1i c\u00f3 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t quan tr\u1ecdng.<\/p>\n
M\u00e1y T\u00ednh Th\u00f4ng Th\u01b0\u1eddng (C\u00f3 N\u00fat %)<\/h3>\n
C\u00e1c m\u00e1y b\u1ecf t\u00fai c\u01a1 b\u1ea3n (Casio HS-8V, MS-20UC\u2026) \u0111\u1ec1u c\u00f3 n\u00fat %<\/kbd> ri\u00eang. C\u00e1ch d\u00f9ng:<\/p>\n
T\u00ednh X% c\u1ee7a Y (v\u00ed d\u1ee5: 15% c\u1ee7a 200):<\/strong><\/p>\n
B\u1ea5m: 2 0 0 \u00d7 1 5 %\nK\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb: 30\n\nGi\u1ea3i th\u00edch: Sau khi b\u1ea5m %, m\u00e1y t\u1ef1 t\u00ednh 200 \u00d7 (15\/100) = 30\nKH\u00d4NG c\u1ea7n b\u1ea5m = \u1edf cu\u1ed1i<\/code><\/pre>\nV\u00ed d\u1ee5 2 \u2014 T\u00ednh ti\u1ec1n sau khi gi\u1ea3m 20% t\u1eeb 500,000\u0111:<\/strong><\/p>\n
B\u1ea5m: 5 0 0 0 0 0 \u2212 2 0 %\nK\u1ebft qu\u1ea3: 400,000\n\nM\u00e1y t\u00ednh: 500,000 \u2212 (500,000 \u00d7 20%) = 400,000<\/code><\/pre>\nV\u00ed d\u1ee5 3 \u2014 T\u00ednh t\u1ed5ng sau khi c\u1ed9ng thu\u1ebf 10%:<\/strong><\/p>\n
B\u1ea5m: 3 0 0 0 0 0 + 1 0 %\nK\u1ebft qu\u1ea3: 330,000<\/code><\/pre>\n\ud83d\udca1 L\u01b0u \u00fd quan tr\u1ecdng:<\/strong> V\u1edbi m\u00e1y b\u1ecf t\u00fai th\u00f4ng th\u01b0\u1eddng, sau ph\u00e9p \u00d7 ho\u1eb7c \u00f7 th\u00ec b\u1ea5m %<\/kbd> thay v\u00ec =<\/kbd>. Nh\u01b0ng sau ph\u00e9p + ho\u1eb7c \u2212 th\u00ec b\u1ea5m %<\/kbd> r\u1ed3i kh\u00f4ng c\u1ea7n b\u1ea5m =<\/strong> \u2014 k\u1ebft qu\u1ea3 xu\u1ea5t hi\u1ec7n ngay.<\/p>\n
T\u00ednh % T\u0103ng Gi\u1ea3m Tr\u00ean Casio<\/h3>\n
B\u00e0i to\u00e1n “t\u0103ng X%” ho\u1eb7c “gi\u1ea3m Y%” r\u1ea5t hay g\u1eb7p khi t\u00ednh gi\u00e1 sau khuy\u1ebfn m\u00e3i, l\u01b0\u01a1ng th\u01b0\u1edfng, l\u00e3i su\u1ea5t.<\/p>\n
T\u00ednh gi\u00e1 sau khi t\u0103ng 20% t\u1eeb 500,000\u0111:<\/strong><\/p>\n
B\u1ea5m: 5 0 0 0 0 0 + 2 0 %\nK\u1ebft qu\u1ea3: 600,000\n\nT\u01b0\u01a1ng \u0111\u01b0\u01a1ng: 500,000 \u00d7 1.20 = 600,000<\/code><\/pre>\nT\u00ednh gi\u00e1 g\u1ed1c khi bi\u1ebft gi\u00e1 sau gi\u1ea3m 30% l\u00e0 350,000\u0111:<\/strong><\/p>\nC\u00f4ng th\u1ee9c: Gi\u00e1 g\u1ed1c = Gi\u00e1 sau \/ (1 - 30%)\nB\u1ea5m: 3 5 0 0 0 0 \u00f7 0 . 7 =\nK\u1ebft qu\u1ea3: 500,000<\/code><\/pre>\nCasio fx-570 (m\u00e1y khoa h\u1ecdc):<\/strong><\/p>\nN\u00fat % n\u1eb1m \u1edf v\u1ecb tr\u00ed SHIFT + (m\u1ed9t n\u00fat kh\u00e1c t\u00f9y model)\nV\u1edbi fx-570VN Plus: n\u00fat % \u1edf h\u00e0ng tr\u00ean, c\u1ea1nh n\u00fat =\nC\u00e1ch d\u00f9ng t\u01b0\u01a1ng t\u1ef1 m\u00e1y th\u00f4ng th\u01b0\u1eddng<\/code><\/pre>\nXem th\u00eam c\u00e1ch t\u00ednh ph\u1ea7n tr\u0103m t\u0103ng gi\u1ea3m chi ti\u1ebft t\u1ea1i: C\u00e1ch T\u00ednh Ph\u1ea7n Tr\u0103m T\u0103ng Gi\u1ea3m Ch\u00ednh X\u00e1c<\/a><\/p>\n C\u00e1c L\u1ed7i Hay G\u1eb7p Khi B\u1ea5m % Tr\u00ean Casio<\/h3>\n\n\n\n\n\n\n\n\nL\u1ed7i<\/th>\n Nguy\u00ean nh\u00e2n<\/th>\n C\u00e1ch fix<\/th>\n<\/tr>\n<\/thead>\n K\u1ebft qu\u1ea3 sai g\u1ea5p 100 l\u1ea7n<\/td>\n B\u1ea5m % r\u1ed3i l\u1ea1i b\u1ea5m \u00f7 100<\/td>\n Ch\u1ec9 b\u1ea5m % m\u1ed9t l\u1ea7n, kh\u00f4ng c\u1ea7n \u00f7 100<\/td>\n<\/tr>\n M\u00e0n h\u00ecnh hi\u1ec7n “E” (Error)<\/td>\n B\u1ea5m = sau %, ho\u1eb7c sai th\u1ee9 t\u1ef1<\/td>\n V\u1edbi +\/\u2212: b\u1ea5m % kh\u00f4ng c\u1ea7n =. V\u1edbi \u00d7\/\u00f7: b\u1ea5m % thay cho =<\/td>\n<\/tr>\n K\u1ebft qu\u1ea3 0 ho\u1eb7c kh\u00f4ng \u0111\u1ed5i<\/td>\n Qu\u00ean nh\u1eadp s\u1ed1 tr\u01b0\u1edbc d\u1ea5u \u00d7<\/td>\n Nh\u1eadp \u0111\u1ee7: [s\u1ed1 g\u1ed1c] \u00d7 [ph\u1ea7n tr\u0103m] %<\/td>\n<\/tr>\n M\u00e1y Casio fx t\u00ednh sai<\/td>\n \u0110ang \u1edf mode CMPLX ho\u1eb7c MATRIX<\/td>\n Nh\u1ea5n MODE \u2192 1 (COMP) \u0111\u1ec3 v\u1ec1 mode th\u00f4ng th\u01b0\u1eddng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nC\u00e1ch T\u00ednh % Tr\u00ean Excel \/ Google Sheets<\/h2>\nExcel v\u00e0 Google Sheets x\u1eed l\u00fd ph\u1ea7n tr\u0103m linh ho\u1ea1t h\u01a1n m\u00e1y t\u00ednh c\u1ea7m tay \u2014 b\u1ea1n c\u00f3 th\u1ec3 t\u00ednh h\u00e0ng lo\u1ea1t d\u1eef li\u1ec7u, so s\u00e1nh t\u1ef1 \u0111\u1ed9ng v\u00e0 format k\u1ebft qu\u1ea3 ngay trong \u00f4.<\/p>\n T\u00ednh % C\u01a1 B\u1ea3n Trong Excel<\/h3>\nC\u00f4ng th\u1ee9c t\u00ednh X l\u00e0 bao nhi\u00eau % c\u1ee7a Y:<\/strong><\/p>\n = A1 \/ B1\n\nV\u00ed d\u1ee5: A1 = 30, B1 = 200\n= 30 \/ 200 \u2192 k\u1ebft qu\u1ea3: 0.15\n\nSau \u0111\u00f3 format \u00f4 th\u00e0nh % \u2192 hi\u1ec3n th\u1ecb: 15%<\/code><\/pre>\nT\u00ednh X% c\u1ee7a Y (v\u00ed d\u1ee5: 15% c\u1ee7a 200):<\/strong><\/p>\n = B1 * A1 \/ 100\nho\u1eb7c: = B1 * A1%\n\nN\u1ebfu A1 ch\u1ee9a s\u1ed1 15, B1 ch\u1ee9a s\u1ed1 200:\n= 200 * 15 \/ 100 = 30\nho\u1eb7c: = 200 * 15% = 30<\/code><\/pre>\nFormat \u00d4 Th\u00e0nh % (Ctrl+Shift+5)<\/h3>\nKhi \u00f4 ch\u1ee9a gi\u00e1 tr\u1ecb th\u1eadp ph\u00e2n (0.15), b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb d\u1ea1ng ph\u1ea7n tr\u0103m:<\/p>\n C\u00e1ch 1 \u2014 Ph\u00edm t\u1eaft: Ctrl + Shift + 5\n\u2192 \u00d4 hi\u1ec3n th\u1ecb: 15% (thay v\u00ec 0.15)\n\nC\u00e1ch 2 \u2014 Ribbon:\nHome \u2192 Number \u2192 ch\u1ecdn % t\u1eeb dropdown\n\nC\u00e1ch 3 \u2014 Format Cells:\nCtrl + 1 \u2192 Category: Percentage \u2192 OK\n\n\ud83d\udca1 L\u01b0u \u00fd: N\u1ebfu b\u1ea1n g\u00f5 15 v\u00e0o \u00f4 r\u1ed3i format %, Excel hi\u1ec3n th\u1ecb 1500%\nPh\u1ea3i g\u00f5 0.15 ho\u1eb7c g\u00f5 15% tr\u1ef1c ti\u1ebfp (Excel t\u1ef1 chia 100)<\/code><\/pre>\nT\u00ednh % T\u0103ng Gi\u1ea3m Trong Excel<\/h3>\n\u0110\u00e2y l\u00e0 c\u00f4ng th\u1ee9c \u0111\u01b0\u1ee3c d\u00f9ng nhi\u1ec1u nh\u1ea5t trong b\u00e1o c\u00e1o kinh doanh:<\/p>\n C\u00f4ng th\u1ee9c: = (B2 - A2) \/ A2\n\nV\u00ed d\u1ee5: Doanh thu th\u00e1ng 1 (A2) = 100,000,000\u0111\n Doanh thu th\u00e1ng 2 (B2) = 120,000,000\u0111\n\n= (120,000,000 - 100,000,000) \/ 100,000,000\n= 20,000,000 \/ 100,000,000\n= 0.20 \u2192 Format % \u2192 20%\n\n\u2192 Doanh thu t\u0103ng 20% so v\u1edbi th\u00e1ng tr\u01b0\u1edbc<\/code><\/pre>\n\u00c1p d\u1ee5ng cho to\u00e0n c\u1ed9t d\u1eef li\u1ec7u:<\/strong><\/p>\n Nh\u1eadp c\u00f4ng th\u1ee9c v\u00e0o C2: =(B2-A2)\/A2\nK\u00e9o fill handle xu\u1ed1ng \u2192 Excel t\u1ef1 t\u00ednh cho C3, C4, C5\u2026\nFormat to\u00e0n c\u1ed9t C th\u00e0nh % (Ctrl+Shift+5)<\/code><\/pre>\nXem th\u00eam: C\u00f4ng th\u1ee9c t\u00ednh ph\u1ea7n tr\u0103m t\u0103ng gi\u1ea3m \u0111\u1ea7y \u0111\u1ee7<\/a><\/p>\n H\u00e0m PERCENTRANK v\u00e0 PERCENTILE Trong Excel<\/h3>\nPERCENTRANK<\/strong> \u2014 X\u1ebfp h\u1ea1ng m\u1ed9t gi\u00e1 tr\u1ecb trong t\u1eadp d\u1eef li\u1ec7u theo ph\u1ea7n tr\u0103m:<\/p>\n = PERCENTRANK(array, x, [significance])\n\nV\u00ed d\u1ee5: \u0110i\u1ec3m thi c\u1ee7a 10 h\u1ecdc sinh trong A1:A10\n= PERCENTRANK(A1:A10, 85)\n\u2192 K\u1ebft qu\u1ea3: 0.8 \u2192 ngh\u0129a l\u00e0 \u0111i\u1ec3m 85 cao h\u01a1n 80% h\u1ecdc sinh c\u00f2n l\u1ea1i<\/code><\/pre>\nPERCENTILE<\/strong> \u2014 T\u00ecm gi\u00e1 tr\u1ecb t\u1ea1i m\u1ed9t ph\u1ea7n tr\u0103m nh\u1ea5t \u0111\u1ecbnh:<\/p>\n = PERCENTILE(array, k)\n\nV\u00ed d\u1ee5: = PERCENTILE(A1:A10, 0.9)\n\u2192 T\u00ecm gi\u00e1 tr\u1ecb \u1edf m\u1ee9c 90th percentile (top 10%)\n\nD\u00f9ng trong: ph\u00e2n t\u00edch \u0111i\u1ec3m thi, thu nh\u1eadp, benchmark hi\u1ec7u su\u1ea5t<\/code><\/pre>\n5 C\u00f4ng Th\u1ee9c Excel % Hay D\u00f9ng Nh\u1ea5t<\/h3>\n\n\n\n\n\n\n\n\n\nB\u00e0i to\u00e1n<\/th>\n C\u00f4ng th\u1ee9c Excel<\/th>\n V\u00ed d\u1ee5<\/th>\n<\/tr>\n<\/thead>\n X l\u00e0 bao nhi\u00eau % c\u1ee7a Y<\/td>\n =A1\/B1<\/code><\/td>\n 30\/200 = 15%<\/td>\n<\/tr>\n X% c\u1ee7a Y b\u1eb1ng bao nhi\u00eau<\/td>\n =B1*A1%<\/code><\/td>\n 15% \u00d7 200 = 30<\/td>\n<\/tr>\n % t\u0103ng gi\u1ea3m gi\u1eefa 2 k\u1ef3<\/td>\n =(B2-A2)\/A2<\/code><\/td>\n (120-100)\/100 = 20%<\/td>\n<\/tr>\n T\u00ednh gi\u00e1 sau khi t\u0103ng X%<\/td>\n =A1*(1+B1%)<\/code><\/td>\n 100 \u00d7 1.15 = 115<\/td>\n<\/tr>\n T\u00ednh gi\u00e1 sau khi gi\u1ea3m X%<\/td>\n =A1*(1-B1%)<\/code><\/td>\n 100 \u00d7 0.85 = 85<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nXem to\u00e0n b\u1ed9 c\u00e1c c\u00f4ng th\u1ee9c t\u1ea1i: 7 C\u00f4ng Th\u1ee9c T\u00ednh Ph\u1ea7n Tr\u0103m C\u1ea7n Bi\u1ebft<\/a><\/p>\n C\u00e1ch T\u00ednh % Tr\u00ean \u0110i\u1ec7n Tho\u1ea1i<\/h2>\n\u0110i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u00f3 s\u1eb5n m\u00e1y t\u00ednh \u2014 ch\u1ec9 c\u1ea7n bi\u1ebft thao t\u00e1c \u0111\u00fang \u0111\u1ec3 d\u00f9ng n\u00fat % hi\u1ec7u qu\u1ea3.<\/p>\niPhone \u2014 Calculator App<\/h3>\nCalculator m\u1eb7c \u0111\u1ecbnh c\u1ee7a iPhone c\u00f3 n\u00fat %<\/kbd> \u1edf c\u1ea3 ch\u1ebf \u0111\u1ed9 d\u1ecdc v\u00e0 ngang.<\/p>\n Ch\u1ebf \u0111\u1ed9 d\u1ecdc (Portrait):<\/strong><\/p>\nN\u00fat % n\u1eb1m \u1edf h\u00e0ng \u0111\u1ea7u ti\u00ean, g\u00f3c tr\u00e1i\nC\u00e1ch d\u00f9ng gi\u1ed1ng m\u00e1y t\u00ednh th\u00f4ng th\u01b0\u1eddng:\n200 \u00d7 15 % \u2192 K\u1ebft qu\u1ea3: 30\n\nGi\u1ea3m gi\u00e1 20%: 500000 \u2212 20 % \u2192 K\u1ebft qu\u1ea3: 400,000<\/code><\/pre>\nCh\u1ebf \u0111\u1ed9 ngang (Landscape) \u2014 Scientific Calculator:<\/strong><\/p>\nXoay iPhone sang ngang \u2192 Calculator m\u1edf r\u1ed9ng\nXu\u1ea5t hi\u1ec7n th\u00eam: sin, cos, log, x^y, \u2026\nN\u00fat % v\u1eabn \u1edf v\u1ecb tr\u00ed c\u0169\n\nTh\u00eam t\u00ednh n\u0103ng: \n- x! (giai th\u1eeba)\n- 2^x (l\u0169y th\u1eeba)\n- Rand (s\u1ed1 ng\u1eabu nhi\u00ean)\nPh\u00f9 h\u1ee3p b\u00e0i to\u00e1n % ph\u1ee9c t\u1ea1p h\u01a1n<\/code><\/pre>\nT\u00ednh % gi\u1ea3m gi\u00e1 tr\u00ean iPhone (v\u00ed d\u1ee5 th\u1ef1c t\u1ebf):<\/strong><\/p>\nS\u1ea3n ph\u1ea9m gi\u00e1 1,200,000\u0111 \u2014 gi\u1ea3m 35%\nB\u01b0\u1edbc 1: B\u1ea5m 1200000\nB\u01b0\u1edbc 2: B\u1ea5m \u2212 (tr\u1eeb)\nB\u01b0\u1edbc 3: B\u1ea5m 35\nB\u01b0\u1edbc 4: B\u1ea5m %\n\u2192 K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb: 780,000\u0111 (gi\u00e1 sau gi\u1ea3m)\n\u2192 Ti\u1ec1n \u0111\u01b0\u1ee3c gi\u1ea3m: 420,000\u0111<\/code><\/pre>\nAndroid \u2014 Calculator M\u1eb7c \u0110\u1ecbnh<\/h3>\nH\u1ea7u h\u1ebft \u0111i\u1ec7n tho\u1ea1i Android (Samsung, Xiaomi, Oppo\u2026) \u0111\u1ec1u c\u00f3 n\u00fat % trong Calculator m\u1eb7c \u0111\u1ecbnh.<\/p>\n C\u00e1ch t\u00ecm n\u00fat %:<\/strong><\/p>\nSamsung: M\u1edf Calculator \u2192 n\u00fat % \u1edf h\u00e0ng th\u1ee9 2 ho\u1eb7c 3\nXiaomi: Calculator \u2192 % \u1edf c\u1ea1nh n\u00fat AC\nOppo: Calculator \u2192 % n\u1eb1m \u1edf g\u00f3c tr\u00e1i tr\u00ean\n\nN\u1ebfu kh\u00f4ng th\u1ea5y: Vu\u1ed1t \u0111\u1ec3 m\u1edf ch\u1ebf \u0111\u1ed9 Scientific (Advanced)\n\u2192 S\u1ebd th\u1ea5y th\u00eam nhi\u1ec1u n\u00fat to\u00e1n h\u1ecdc<\/code><\/pre>\nV\u00ed d\u1ee5 t\u00ednh % gi\u1ea3m gi\u00e1 tr\u00ean Android:<\/strong><\/p>\nS\u1ea3n ph\u1ea9m 800,000\u0111 \u2014 gi\u1ea3m 25%\nB\u1ea5m: 800000 \u00d7 25 %\n\u2192 K\u1ebft qu\u1ea3: 200,000 (s\u1ed1 ti\u1ec1n \u0111\u01b0\u1ee3c gi\u1ea3m)\n\n\u0110\u1ec3 t\u00ednh gi\u00e1 cu\u1ed1i: 800,000 \u2212 200,000 = 600,000\u0111\nHo\u1eb7c: 800000 \u2212 25 % \u2192 K\u1ebft qu\u1ea3 th\u1eb3ng: 600,000\u0111<\/code><\/pre>\nXem th\u00eam v\u00ed d\u1ee5 t\u00ednh ph\u1ea7n tr\u0103m gi\u1ea3m gi\u00e1: C\u00e1ch T\u00ednh % Gi\u1ea3m Gi\u00e1 Khi Mua S\u1eafm<\/a><\/p>\n D\u00f9ng Google Search \u0110\u1ec3 T\u00ednh % (Nhanh Nh\u1ea5t)<\/h3>\n\u0110\u00e2y l\u00e0 c\u00e1ch \u00edt ng\u01b0\u1eddi bi\u1ebft nh\u01b0ng c\u1ef1c k\u1ef3 ti\u1ec7n l\u1ee3i \u2014 kh\u00f4ng c\u1ea7n m\u1edf app, g\u00f5 th\u1eb3ng v\u00e0o Google:<\/p>\n G\u00f5 v\u00e0o thanh t\u00ecm ki\u1ebfm Google:\n\"15% of 200\" \u2192 K\u1ebft qu\u1ea3: 30\n\"15 percent of 200\" \u2192 K\u1ebft qu\u1ea3: 30\n\"200 * 15%\" \u2192 K\u1ebft qu\u1ea3: 30\n\"200 - 20%\" \u2192 K\u1ebft qu\u1ea3: 160 (sau khi gi\u1ea3m 20%)\n\"200 + 15%\" \u2192 K\u1ebft qu\u1ea3: 230 (sau khi t\u0103ng 15%)\n\nGoogle hi\u1ec7n lu\u00f4n m\u1ed9t m\u00e1y t\u00ednh mini v\u1edbi k\u1ebft qu\u1ea3\nC\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c b\u1ea5m c\u00e1c ph\u00e9p t\u00ednh kh\u00e1c tr\u00ean \u0111\u00f3<\/code><\/pre>\n\ud83d\udca1 M\u1eb9o:<\/strong> Tr\u00ean \u0111i\u1ec7n tho\u1ea1i, h\u1ecfi Siri (iPhone) ho\u1eb7c Google Assistant (Android): “15 percent of 200 is how much?”<\/em> \u2014 tr\u1ee3 l\u00fd s\u1ebd \u0111\u1ecdc k\u1ebft qu\u1ea3 ngay.<\/p>\n C\u00e1ch T\u00ednh % Tr\u00ean M\u00e1y T\u00ednh Windows \/ Mac<\/h2>\nWindows Calculator \u2014 Standard Mode<\/h3>\nWindows 10\/11 c\u00f3 s\u1eb5n Calculator v\u1edbi n\u00fat % \u0111\u1ea7y \u0111\u1ee7.<\/p>\n M\u1edf nhanh:<\/strong><\/p>\n Windows + S \u2192 g\u00f5 \"Calculator\" \u2192 Enter\nho\u1eb7c: T\u00ecm ki\u1ebfm Start Menu \u2192 Calculator<\/code><\/pre>\nC\u00e1ch d\u00f9ng n\u00fat % trong Windows Calculator:<\/strong><\/p>\n V\u00ed d\u1ee5: 15% c\u1ee7a 200\nB\u1ea5m: 200 \u00d7 15 %\n\u2192 Windows Calculator hi\u1ec3n th\u1ecb: 30 (ngay khi b\u1ea5m %)\n\nT\u00ednh gi\u00e1 sau gi\u1ea3m 30%:\nB\u1ea5m: 500 - 30 %\n\u2192 Hi\u1ec3n th\u1ecb: 350\n\nL\u01b0u \u00fd: Trong Standard mode, Windows Calculator x\u1eed l\u00fd %\ngi\u1ed1ng m\u00e1y t\u00ednh b\u1ecf t\u00fai \u2014 t\u1ef1 \u0111\u1ed9ng t\u00ednh X% c\u1ee7a s\u1ed1 hi\u1ec7n t\u1ea1i<\/code><\/pre>\nChuy\u1ec3n sang Scientific mode (n\u00e2ng cao h\u01a1n):<\/strong><\/p>\n Click menu \u2630 (g\u00f3c tr\u00e1i tr\u00ean)\nCh\u1ecdn \"Scientific\" \n\u2192 Th\u00eam n\u00fat: sin, cos, log, n!, x^y, mod\u2026\n\u2192 N\u00fat % v\u1eabn ho\u1ea1t \u0111\u1ed9ng nh\u01b0 c\u0169<\/code><\/pre>\nSpotlight Search Tr\u00ean Mac<\/h3>\nMac kh\u00f4ng c\u1ea7n m\u1edf app \u2014 d\u00f9ng Spotlight \u0111\u1ec3 t\u00ednh tr\u1ef1c ti\u1ebfp:<\/p>\n M\u1edf Spotlight: Command (\u2318) + Space\nG\u00f5: 200 * 15% \u2192 K\u1ebft qu\u1ea3: 30\nG\u00f5: 500 - 30% \u2192 K\u1ebft qu\u1ea3: 350\nG\u00f5: 1000000 + 8% \u2192 K\u1ebft qu\u1ea3: 1,080,000\n\nSpotlight t\u00ednh to\u00e1n t\u1ee9c th\u00ec \u2014 kh\u00f4ng c\u1ea7n b\u1ea5m Enter<\/code><\/pre>\nHo\u1eb7c m\u1edf Calculator app tr\u00ean Mac:<\/strong><\/p>\n Command + Space \u2192 \"Calculator\" \u2192 Enter\nHo\u1eb7c: Applications \u2192 Calculator\n\nView \u2192 Scientific (\u2318 + 2) \u0111\u1ec3 d\u00f9ng ch\u1ebf \u0111\u1ed9 khoa h\u1ecdc\nN\u00fat % \u1edf h\u00e0ng th\u1ee9 3, c\u1ea1nh n\u00fat \u00b1<\/code><\/pre>\nSo S\u00e1nh T\u1ed1c \u0110\u1ed9: Casio vs Excel vs \u0110i\u1ec7n Tho\u1ea1i vs Online Tool<\/h2>\nM\u1ed7i c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t t\u00ecnh hu\u1ed1ng kh\u00e1c nhau. B\u1ea3ng so s\u00e1nh d\u01b0\u1edbi \u0111\u00e2y gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang:<\/p>\n\n\n\n\n\n\n\n\n\n\n\nTi\u00eau ch\u00ed<\/th>\n Casio<\/th>\n Excel<\/th>\n \u0110i\u1ec7n tho\u1ea1i<\/th>\n Online Tool<\/th>\n<\/tr>\n<\/thead>\n T\u1ed1c \u0111\u1ed9 (1 ph\u00e9p t\u00ednh)<\/strong><\/td>\n \u2b50\u2b50\u2b50\u2b50\u2b50 Nhanh nh\u1ea5t<\/td>\n \u2b50\u2b50\u2b50 C\u1ea7n m\u1edf file<\/td>\n \u2b50\u2b50\u2b50\u2b50 Nhanh<\/td>\n \u2b50\u2b50\u2b50\u2b50\u2b50 Ngay l\u1eadp t\u1ee9c<\/td>\n<\/tr>\n Nhi\u1ec1u d\u1eef li\u1ec7u<\/strong><\/td>\n \u274c Th\u1ee7 c\u00f4ng t\u1eebng c\u00e1i<\/td>\n \u2705 T\u1ef1 \u0111\u1ed9ng to\u00e0n b\u1ea3ng<\/td>\n \u274c Th\u1ee7 c\u00f4ng<\/td>\n \u274c T\u1eebng ph\u00e9p t\u00ednh<\/td>\n<\/tr>\n L\u01b0u k\u1ebft qu\u1ea3<\/strong><\/td>\n \u274c Kh\u00f4ng<\/td>\n \u2705 L\u01b0u file<\/td>\n \u26a0\ufe0f C\u1ea7n screenshot<\/td>\n \u26a0\ufe0f Copy k\u1ebft qu\u1ea3<\/td>\n<\/tr>\n Kh\u00f4ng c\u1ea7n internet<\/strong><\/td>\n \u2705 Ho\u00e0n to\u00e0n offline<\/td>\n \u2705 Offline (desktop)<\/td>\n \u2705 Offline<\/td>\n \u26a0\ufe0f C\u1ea7n internet<\/td>\n<\/tr>\n D\u1ec5 d\u00f9ng cho ng\u01b0\u1eddi m\u1edbi<\/strong><\/td>\n \u2b50\u2b50\u2b50 C\u1ea7n bi\u1ebft thao t\u00e1c<\/td>\n \u2b50\u2b50 C\u1ea7n bi\u1ebft c\u00f4ng th\u1ee9c<\/td>\n \u2b50\u2b50\u2b50\u2b50 Tr\u1ef1c quan<\/td>\n \u2b50\u2b50\u2b50\u2b50\u2b50 D\u1ec5 nh\u1ea5t<\/td>\n<\/tr>\n B\u00e1o c\u00e1o \/ bi\u1ec3u \u0111\u1ed3<\/strong><\/td>\n \u274c<\/td>\n \u2705 Bi\u1ec3u \u0111\u1ed3, pivot table<\/td>\n \u274c<\/td>\n \u274c<\/td>\n<\/tr>\n Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/strong><\/td>\n Ph\u00f2ng thi, t\u00ednh nhanh t\u1ea1i ch\u1ed7<\/td>\n Ph\u00e2n t\u00edch d\u1eef li\u1ec7u, b\u00e1o c\u00e1o<\/td>\n \u0110i ch\u1ee3, mua s\u1eafm<\/td>\n 1-2 ph\u00e9p t\u00ednh nhanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nK\u1ebft lu\u1eadn:<\/strong> D\u00f9ng Casio khi thi ho\u1eb7c kh\u00f4ng c\u00f3 \u0111i\u1ec7n tho\u1ea1i. D\u00f9ng Excel khi x\u1eed l\u00fd nhi\u1ec1u s\u1ed1 li\u1ec7u. D\u00f9ng \u0111i\u1ec7n tho\u1ea1i khi mua s\u1eafm ngo\u00e0i \u0111\u01b0\u1eddng. D\u00f9ng 1phantram.com<\/a> khi c\u1ea7n t\u00ednh nhanh 1-2 ph\u00e9p tr\u00ean m\u00e1y t\u00ednh\/\u0111i\u1ec7n tho\u1ea1i c\u00f3 internet.<\/p>\n <\/p>\n \n\ud83e\uddee T\u00ednh % Ngay \u2014 Kh\u00f4ng C\u1ea7n Nh\u1edb C\u00f4ng Th\u1ee9c<\/h3>\nNh\u1eadp s\u1ed1 v\u00e0o 1phantram.com<\/strong><\/a> v\u00e0 nh\u1eadn k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c. H\u1ed7 tr\u1ee3: X% c\u1ee7a Y, % t\u0103ng\/gi\u1ea3m, t\u00ecm gi\u00e1 g\u1ed1c, % nhi\u1ec1u lo\u1ea1i b\u00e0i to\u00e1n kh\u00e1c.<\/p>\n Th\u1eed Ngay \u2192<\/a>\n<\/div>\n C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p (FAQ)<\/h2>\n

\u26a1 T\u00ednh % Nhanh H\u01a1n \u2014 Kh\u00f4ng C\u1ea7n B\u1ea5m T\u1eebng B\u01b0\u1edbc<\/h3>\nNh\u1eadp s\u1ed1 v\u00e0o tool \u2192 k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c. H\u1ed7 tr\u1ee3 t\u1ea5t c\u1ea3 lo\u1ea1i b\u00e0i to\u00e1n %.<\/p>\n

iPhone \u2014 Calculator App<\/h3>\nCalculator m\u1eb7c \u0111\u1ecbnh c\u1ee7a iPhone c\u00f3 n\u00fat %<\/kbd> \u1edf c\u1ea3 ch\u1ebf \u0111\u1ed9 d\u1ecdc v\u00e0 ngang.<\/p>\nCh\u1ebf \u0111\u1ed9 d\u1ecdc (Portrait):<\/strong><\/p>\n

Android \u2014 Calculator M\u1eb7c \u0110\u1ecbnh<\/h3>\nH\u1ea7u h\u1ebft \u0111i\u1ec7n tho\u1ea1i Android (Samsung, Xiaomi, Oppo\u2026) \u0111\u1ec1u c\u00f3 n\u00fat % trong Calculator m\u1eb7c \u0111\u1ecbnh.<\/p>\nC\u00e1ch t\u00ecm n\u00fat %:<\/strong><\/p>\n