Percentage Calculations and Applications

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It represents how much of something there is out of a total.

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 75, calculate 75 x 0.20 = 15.

Front

What is 40% of 140?

Back

56

Front

If 40% of a group is male, what percentage is female?

Back

60% (100% - 40% = 60%)

Front

How do you find the percentage of a part compared to a whole?

Back

Divide the part by the whole and then multiply by 100. For example, to find the percentage of green apples in 100 apples, divide 65 by 100 and multiply by 100 to get 65%.

Front

What is 25% of 132?

Back

33

Front

If 88% of tickets are sold, how do you find the remaining percentage?

Back

Subtract the sold percentage from 100%. For example, 100% - 88% = 12% remaining.

Front

How many tickets are left if 750 tickets are sold at 88%?

Back

90 tickets are left (12% of 750 is 90).

Front

What is the formula to calculate the percentage increase?

Back

Percentage Increase = ((New Value - Old Value) / Old Value) x 100.

Front

What is the formula to calculate the percentage decrease?

Back

Percentage Decrease = ((Old Value - New Value) / Old Value) x 100.