Percents

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, 25% means 25 out of 100.

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 x 0.20 = 10.

Front

What is 50% of a number?

Back

50% of a number is half of that number. For example, 50% of 80 is 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 = 0.25 x 100 = 25%.

Front

What is 25% of 200?

Back

25% of 200 is 50, because 200 x 0.25 = 50.

Front

How do you find the total when given a percentage?

Back

To find the total when given a percentage, divide the known amount by the percentage (in decimal form). For example, if 30% of a number is 60, the total is 60 / 0.30 = 200.

Front

What is 75% of 80?

Back

75% of 80 is 60, because 80 x 0.75 = 60.

Front

How do you calculate a tip as a percentage?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For example, for a $50 bill with a 20% tip, calculate 50 x 0.20 = $10.

Front

What is the formula to find the percentage of a part compared to a whole?

Back

The formula is: (Part / Whole) x 100 = Percentage. For example, if you scored 15 out of 20, the percentage is (15 / 20) x 100 = 75%.

Front

If 60% of a number is 120, what is the number?

Back

The number is 200, because 120 / 0.60 = 200.