Percent Proportions

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 50, calculate 50 x 0.20 = 10.

Front

What is the formula to find the whole when given a percentage and a part?

Back

The formula is: Whole = Part / (Percentage in decimal form). For example, if 34% of a number is 51, the whole is 51 / 0.34 = 150.

Front

What is 10% of 200?

Back

20

Front

What is 25% of 80?

Back

20

Front

What is 75% of 120?

Back

90

Front

What is 5% of 300?

Back

15

Front

What is 60% of 90?

Back

54

Front

What is 15% of 200?

Back

30

Front

What is 40% of 50?

Back

20