Percent Proportion

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 * 0.20 = 10.

Front

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

Back

The formula is: Whole = Part / (Percent / 100). For example, if 30 is 60% of a number, the whole is 30 / 0.60 = 50.

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 = (1 ÷ 4) * 100 = 25%.

Front

What is the relationship between percent, fraction, and decimal?

Back

Percent is a fraction with a denominator of 100. To convert a percent to a decimal, divide by 100. To convert a decimal to a percent, multiply by 100.

Front

What is the percent proportion formula?

Back

The percent proportion formula is: Part/Whole = Percent/100.

Front

If 25% of a number is 15, what is the number?

Back

The number is 60. (15 / 0.25 = 60)

Front

What percent of 200 is 50?

Back

25%. (50 / 200 = 0.25, which is 25%)

Front

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

Back

Divide the part by the whole and multiply by 100. For example, to find what percent 30 is of 150, calculate (30 / 150) * 100 = 20%.

Front

What is the percent increase formula?

Back

Percent Increase = ((New Value - Original Value) / Original Value) * 100.