The Percent Equation

Front

What is the percent equation?

Back

The percent equation is a mathematical formula used to find the part, whole, or percent in a problem. It is expressed as: Part = Percent × Whole.

Front

How do you find a percentage of a number?

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 30% of 50, calculate 50 × 0.30 = 15.

Front

What is 50% of 200?

Back

100

Front

What is 25% of 80?

Back

20

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 25% becomes 0.25.

Front

What is 10% of 150?

Back

15

Front

How do you find the whole when given a part and a percent?

Back

Use the formula: Whole = Part ÷ Percent. For example, if 30 is 20% of a number, the whole is 30 ÷ 0.20 = 150.

Front

What is 15% of 60?

Back

9

Front

What is 40% of 90?

Back

36

Front

How do you find what percent one number is of another?

Back

Use the formula: Percent = (Part ÷ Whole) × 100. For example, to find what percent 30 is of 150, calculate (30 ÷ 150) × 100 = 20%.