Percentages

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

Front

How do you convert a decimal to a percentage?

Back

To convert a decimal to a percentage, multiply the decimal by 100 and add a percent sign (%). For example, 0.05 becomes 5%.

Front

What is 100% of a number?

Back

100% of a number is the whole number itself. For example, 100% of 50 is 50.

Front

What does it mean if something is 125% of another?

Back

If something is 125% of another, it means it is 25% more than the original amount.

Front

How do you find a percentage of a number?

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 75, calculate 75 * 0.20 = 15.

Front

What is the formula to calculate the percentage of a part to a whole?

Back

The formula is: (Part/Whole) * 100 = Percentage.

Front

What is 20% of 50?

Back

20% of 50 is 10.

Front

If a shirt costs $40 and is on sale for 25% off, what is the sale price?

Back

The sale price is $30. (25% of $40 is $10, so $40 - $10 = $30.)

Front

How do you calculate the final price after tax?

Back

To calculate the final price after tax, multiply the original price by the tax rate (in decimal form) and add it to the original price.

Front

What is 15% of 200?

Back

15% of 200 is 30.