Percents - Finding the Part, Whole and Percent

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

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

Back

To find the part, multiply the whole by the percent (in decimal form). For example, to find 25% of 200, calculate 200 x 0.25 = 50.

Front

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

Back

To find the whole, divide the part by the percent (in decimal form). For example, if 30 is 60% of a number, calculate 30 ÷ 0.60 = 50.

Front

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

Back

To find the percent, divide the part by the whole and then multiply by 100. For example, if 20 is part of 80, calculate (20 ÷ 80) x 100 = 25%.

Front

What is the formula to calculate the part from the whole and percent?

Back

Part = Whole x Percent (in decimal form).

Front

What is the formula to calculate the whole from the part and percent?

Back

Whole = Part ÷ Percent (in decimal form).

Front

What is the formula to calculate the percent from the part and whole?

Back

Percent = (Part ÷ Whole) x 100.

Front

If 75% of a number is 45, what is the number?

Back

The number is 60. (45 ÷ 0.75 = 60)

Front

If a class has 20 students and 12 are girls, what percent of the class are girls?

Back

60%. (12 ÷ 20 x 100 = 60%)

Front

If a store has 200 items and 50 are on sale, what percent of the items are on sale?

Back

25%. (50 ÷ 200 x 100 = 25%)