Percent Proportion

Front

What is Percent Proportion?

Back

Percent proportion is a way to express a number as a fraction of 100. It is used to compare a part to a whole.

Front

How do you calculate the percent of a number?

Back

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

Front

What is the formula for finding the whole when given a part and a percent?

Back

The formula is: Whole = Part / (Percent / 100). For example, if 20 is 40% of a number, the whole is 20 / 0.40 = 50.

Front

What is 40% of 230?

Back

92

Front

34% of what number is 51?

Back

150

Front

10% of what number is 8?

Back

80

Front

What is the relationship between percent, part, and whole?

Back

Percent is the ratio of the part to the whole, expressed as a fraction of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100. For example, 1/4 = 0.25 * 100 = 25%.

Front

What does it mean if a number is increased by a certain percent?

Back

Increasing a number by a certain percent means adding that percent of the number to itself. For example, increasing 100 by 20% means adding 20 (which is 20% of 100) to 100, resulting in 120.

Front

What does it mean if a number is decreased by a certain percent?

Back

Decreasing a number by a certain percent means subtracting that percent of the number from itself. For example, decreasing 100 by 20% means subtracting 20 (which is 20% of 100) from 100, resulting in 80.