Percent Of Word Problems

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part 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 20% of 50, calculate 50 x 0.20 = 10.

Front

What does it mean to find 'what percent' of a number?

Back

Finding 'what percent' of a number involves determining what fraction of the number corresponds to a given part. This can be calculated by dividing the part by the whole and multiplying by 100.

Front

How do you calculate the total cost including sales tax?

Back

To calculate the total cost including sales tax, multiply the original price by the sales tax rate (in decimal form) and then add that amount to the original price.

Front

What is the formula to find the discount amount?

Back

The discount amount can be found by multiplying the original price by the discount percentage (in decimal form).

Front

If a shirt costs $30 and is on sale for 25% off, how much do you save?

Back

You save $7.50. (30 x 0.25 = 7.50)

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by dividing the numerator by the denominator and multiplying by 100.

Front

How do you find the number of items that represent a percentage of a total?

Back

To find the number of items that represent a percentage of a total, multiply the total number of items by the percentage (in decimal form).

Front

What is the formula for calculating the percentage increase?

Back

Percentage increase = ((new value - original value) / original value) x 100.

Front

What is the formula for calculating the percentage decrease?

Back

Percentage decrease = ((original value - new value) / original value) x 100.