Percentages

Front

What is a percentage?

Back

A percentage is a fraction expressed as a part of 100. It represents a proportion of a whole.

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 25% of 200, calculate 200 * 0.25.

Front

What is 25% of 100?

Back

25% of 100 is 25.

Front

What is 10% of 50?

Back

10% of 50 is 5.

Front

What is the formula to find the percentage increase?

Back

The formula for percentage increase is: ((New Value - Original Value) / Original Value) * 100.

Front

What is the formula to find the percentage decrease?

Back

The formula for percentage decrease is: ((Original Value - New Value) / Original Value) * 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 20% of 200?

Back

20% of 200 is 40.

Front

If a shirt costs $50 and is on sale for 20% off, what is the sale price?

Back

The sale price is $40. (20% of $50 is $10, so $50 - $10 = $40.)

Front

What is 50% of 300?

Back

50% of 300 is 150.