Percent

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It is often used to compare quantities.

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 does it mean if 30% of a group contains a certain item?

Back

It means that out of every 100 items in the group, 30 of them are that specific item.

Front

How do you find the percentage of a total?

Back

To find the percentage of a total, divide the part by the total and then multiply by 100. For example, if 25 out of 100 students passed, the percentage is (25/100) x 100 = 25%.

Front

What is the formula to calculate the final price after tax?

Back

Final Price = Original Price + (Original Price x Tax Rate). For example, if a shirt costs $20 and the tax is 5%, the final price is $20 + ($20 x 0.05) = $21.

Front

If a student scores 18 out of 20 on a test, what is their score as a percentage?

Back

To find the percentage, divide the score by the total and multiply by 100: (18/20) x 100 = 90%.

Front

What is 25% of 80?

Back

25% of 80 is 20.

Front

How do you calculate the amount taken out for taxes?

Back

To calculate the amount taken out for taxes, multiply the total income by the tax rate. For example, if someone earns $12,800 and the tax rate is 15%, the tax amount is $12,800 x 0.15 = $1,920.

Front

What does it mean to miss 10% of attempts?

Back

It means that out of every 100 attempts, 10 were not successful.

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 multiply by 100. For example, 1/4 = (1 ÷ 4) x 100 = 25%.