Find the Percent and the Whole

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, 30% means 30 out of 100.

Front

How do you find the percent of a number?

Back

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

Front

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

Back

The formula is: Whole = Part / (Percent / 100). For example, if 30% of a number is 12, the whole is 12 / (30 / 100) = 40.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the top number (numerator) by the bottom number (denominator) and then multiply by 100. For example, 1/4 = (1 ÷ 4) * 100 = 25%.

Front

What is the percent equivalent of 50 out of 200?

Back

To find the percent, divide 50 by 200 and multiply by 100: (50 ÷ 200) * 100 = 25%.

Front

If 25% of a number is 20, what is the number?

Back

To find the number, use the formula: Number = Part / (Percent / 100). So, Number = 20 / (25 / 100) = 80.

Front

What does it mean to find a percent increase?

Back

Finding a percent increase means calculating how much a value has grown in relation to its original amount, expressed as a percentage.

Front

How do you calculate percent decrease?

Back

To calculate percent decrease, subtract the new value from the original value, divide by the original value, and multiply by 100. For example, if a price drops from $50 to $40, the decrease is (50 - 40) / 50 * 100 = 20%.

Front

What is the percent of 15 out of 60?

Back

To find the percent, divide 15 by 60 and multiply by 100: (15 ÷ 60) * 100 = 25%.

Front

If a student scores 18 out of 30 on a test, what percent did they score?

Back

To find the percent, divide 18 by 30 and multiply by 100: (18 ÷ 30) * 100 = 60%.