Percents

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 convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100. For example, 2/5 = (2 ÷ 5) × 100 = 40%.

Front

What is the formula to find the percent of a number?

Back

The formula to find the percent of a number is: (Part/Whole) × 100. For example, to find what percent 30 is of 150, use (30/150) × 100 = 20%.

Front

How do you convert a percent to a decimal?

Back

To convert a percent to a decimal, divide the percent by 100. For example, 6% = 6 ÷ 100 = 0.06.

Front

What is 150% of $20?

Back

150% of $20 is $30. (150/100) × 20 = $30.

Front

If there are 16 students in a class and 4 are girls, what percent are boys?

Back

75% of the class are boys. (12 boys / 16 total students) × 100 = 75%.

Front

What is 25% of 200?

Back

25% of 200 is 50. (25/100) × 200 = 50.

Front

How do you find the percent increase?

Back

To find the percent increase, use the formula: ((New Value - Original Value) / Original Value) × 100.

Front

What is the percent decrease from 80 to 60?

Back

The percent decrease from 80 to 60 is 25%. ((80 - 60) / 80) × 100 = 25%.

Front

What does it mean if a number is increased by 10%?

Back

If a number is increased by 10%, it means you add 10% of that number to itself. For example, increasing 50 by 10% means adding 5, resulting in 55.