Percent Proportion

Front

What is Percent Proportion?

Back

Percent proportion is a way to express a number as a fraction of 100. It is used to compare a part to 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 20% of 50, calculate 50 x 0.20 = 10.

Front

What is the formula for finding the total amount after adding a percentage?

Back

Total Amount = Original Amount + (Original Amount x Percentage). For example, if the original amount is $100 and the percentage is 20%, the total amount is $100 + ($100 x 0.20) = $120.

Front

What is 20% of 102?

Back

20.4

Front

If a dinner costs $85 and a 20% tip is added, what is the total cost?

Back

$102.00

Front

How do you find what percentage one number is of another?

Back

To find what percentage one number is of another, divide the part by the whole and multiply by 100. For example, to find what percent 78 is of 450, calculate (78/450) x 100 = 17%.

Front

What is 30% of 130?

Back

39

Front

What is 40% of 230?

Back

92

Front

What is the formula to convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100. For example, 1/4 = (1 ÷ 4) x 100 = 25%.

Front

What does it mean if a number is 17% of another number?

Back

It means that the first number is 17 parts out of 100 parts of the second number.