How to calculate percentage of an amount?
Use the percentage formula:
Method One
Tom saw a bike for £150 with an additional 10% discount off how much did he get of the original price?
Convert the problem to the equation using the percentage formula: P% * X = Y ÷ 100 (percentage times X equal Y÷ 100)
P = 10% and X = 150
so the equation is 10% x 150 = 1500 ÷ 100= 15
Therefore Y =15
therefore Tom got £15 off the original price
Solution:
Y= is 10% of 150
Equation: Y = P% * X
Y = 10% * 150 =1500
Converting percent to decimal:
Y = 1500 ÷ 100 = 15
Y = 15
| Method Two find the 40% of 96 You divide your percentage by 100. So, 40% would be 40 divided by 100 . Once you have the decimal version of your percentage, simply multiply it by the given number. Pecenatge% ÷ by 100 = answers X Amount 40-100 = 0.4 x 96 = 38.40 40% of 96 = 38.40 |  |
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