Percents Review

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 the percent of a part compared to a whole?

Back

To calculate the percent, divide the part by the whole and then multiply by 100. Formula: (Part/Whole) x 100.

Front

What is the percent of 45 out of 75?

Back

60% (calculated as (45/75) x 100).

Front

What is a percent increase?

Back

A percent increase measures how much a quantity has grown relative to its original amount. Formula: ((New Value - Original Value) / Original Value) x 100.

Front

How do you find the percent decrease?

Back

Percent decrease is calculated by taking the difference between the original value and the new value, dividing by the original value, and multiplying by 100.

Front

What is 3% of 750?

Back

22.5 (calculated as (3/100) x 750).

Front

How do you calculate the final price after tax?

Back

To find the final price after tax, multiply the original price by the tax rate, then add that amount to the original price.

Front

If a pair of shoes costs $65.50 and the tax is 8%, what is the final price?

Back

$70.74 (calculated as $65.50 + ($65.50 x 0.08)).

Front

What is the formula for finding the percent of a number?

Back

Percent = (Part/Whole) x 100.

Front

What does it mean if a student scored 90% on a test?

Back

It means the student answered 90 out of 100 questions correctly.