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 * 0.20 = 10.

Front

What is the formula to find what percent one number is of another?

Back

The formula is: (Part/Whole) * 100 = Percent.

Front

If 25 is 50% of a number, what is the number?

Back

The number is 50, because 25 is half of 50.

Front

What is 10% of 200?

Back

10% of 200 is 20.

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 percent increase if a price goes from $50 to $75?

Back

The percent increase is 50%, calculated as ((75 - 50) / 50) * 100.

Front

If a student scores 18 out of 20 on a test, what percent did they score?

Back

The student scored 90%, calculated as (18/20) * 100.

Front

What is 15% of 60?

Back

15% of 60 is 9.

Front

If a shirt costs $40 and is on sale for $30, what is the percent discount?

Back

The percent discount is 25%, calculated as ((40 - 30) / 40) * 100.