## How you you find the percentage or subset of a total?

If you know the total quantity and the percent but don't know what the percent of the total it represents, you can work out the missing number. To do this, first convert the percent to a decimal by dividing it by 100. For instance, 20 percent is equal to .20. Then multiply this by the total number. The result will be your amount of the total number the percentage represents.

For example, if you know that 60 percent of the students in you year passed the test and you also know that there are 200 students in your year. Then to find how many srudents have passed, convert 60 percent to a decimal and multiply it by 200. The decimal form of 60 is 60 ÷ 100, or 0.6. So to find the number of students, multiply 0.6 by 200.

### Calculation

The calculation is 0.6 × 200 = 120.

### Result

So, 120 students passed the test.