Percentages

Front

What is a percentage?

Back

A percentage is a fraction expressed as a part of 100. It represents how much of something there is in relation to a whole.

Front

How do you calculate the percentage of a number?

Back

To calculate the percentage of a number, multiply the number by the percentage (in decimal form) and then divide by 100.

Front

What is the formula to find the original price after a discount?

Back

Original Price = Sale Price / (1 - Discount Rate) where the discount rate is expressed as a decimal.

Front

If a product costs $80 after a 20% discount, what was the original price?

Back

The original price was $100.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and then multiply by 100.

Front

What is the equivalent fraction of 25%?

Back

25% is equivalent to 25/100 or 1/4.

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.

Front

What is 15% of 200?

Back

15% of 200 is 30.

Front

How do you express a decimal as a percentage?

Back

To express a decimal as a percentage, multiply the decimal by 100 and add a percent sign.

Front

What is the percentage increase if a price goes from $50 to $65?

Back

The percentage increase is 30%.