Percent Proportions

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 the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (in decimal form) and then divide by 100.

Front

What is the formula to find what percent one number is of another?

Back

The formula is: (Part/Whole) x 100 = Percent.

Front

If 40% of a class takes the bus, how do you find the number of students who do not take the bus?

Back

Subtract the number of students who take the bus from the total number of students.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying the fraction by 100.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100.

Front

What is the percent increase formula?

Back

The percent increase formula is: ((New Value - Original Value) / Original Value) x 100.

Front

What is the percent decrease formula?

Back

The percent decrease formula is: ((Original Value - New Value) / Original Value) x 100.

Front

How do you find 90% of a number?

Back

To find 90% of a number, multiply the number by 0.90.

Front

What does it mean if a number is 75% of another number?

Back

It means that the first number is three-quarters of the second number.