Percent of a Number

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 20% means 20 out of 100.

Front

How do you find a percent of a number?

Back

To find a percent of a number, multiply the number by the percent (in decimal form). For example, to find 30% of 70, calculate 70 * 0.30 = 21.

Front

What does it mean if 20% of a group is a certain number?

Back

It means that the number represents 20 out of every 100 members of the group. To find the total number of members, divide the number by the percent (in decimal form).

Front

If 60 is 30% of a number, how do you find that number?

Back

To find the number, divide 60 by 0.30. So, 60 ÷ 0.30 = 200.

Front

What is the formula to calculate the total number from a percent?

Back

The formula is: Total = Part ÷ Percent (in decimal form).

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, 25% becomes 0.25.

Front

What is 70% of 90?

Back

70% of 90 is calculated as 90 * 0.70 = 63.

Front

If 10% of a group is a certain number, how do you find the total group size?

Back

To find the total group size, divide the number by 0.10. For example, if 60 people represent 10%, then the total is 60 ÷ 0.10 = 600.

Front

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

Back

The relationship is defined by the formula: Percent = (Part ÷ Whole) * 100.

Front

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

Back

To find what percent one number is of another, divide the first number by the second number and multiply by 100. For example, to find what percent 30 is of 150, calculate (30 ÷ 150) * 100 = 20%.