Percent Proportions

Front

What is a percent proportion?

Back

A percent proportion is a way to express a part of a whole as a percentage. It is often used to compare a part to the total and is calculated by dividing the part by the whole and multiplying by 100.

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 * 0.20 = 10.

Front

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

Back

The formula to find the original price is: Original Price = Sale Price / (1 - Discount Rate).

Front

If 60% of a number is 30, what is the number?

Back

To find the number, divide 30 by 0.60. The number is 50.

Front

What does it mean if something is 75% off?

Back

If something is 75% off, it means you pay only 25% of the original price.

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

Front

What is the relationship between percentages, fractions, and decimals?

Back

Percentages, fractions, and decimals are different ways to represent the same value. For example, 50% = 0.50 = 1/2.

Front

How do you find the percent of a total?

Back

To find the percent of a total, divide the part by the total and multiply by 100. For example, if you have 20 out of 80, the percent is (20/80) * 100 = 25%.

Front

What is the percent increase formula?

Back

The percent increase formula is: Percent Increase = ((New Value - Original Value) / Original Value) * 100.

Front

If a dress costs $200 and is on sale for $150, what is the percent discount?

Back

The percent discount is calculated as: ((200 - 150) / 200) * 100 = 25%.