Percentage Word Problems

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 the percentage of a part compared to a whole?

Back

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

Front

What is the formula to find the percentage increase?

Back

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

Front

What is the formula to find the percentage decrease?

Back

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

Front

How do you find 25% of a number?

Back

To find 25% of a number, divide the number by 4.

Front

If a shirt costs $40 and is on sale for $32, how do you find the percentage discount?

Back

Percentage Discount = [(Original Price - Sale Price) / Original Price] x 100.

Front

What does it mean if a population increases by 20%?

Back

It means the new population is 120% of the original population.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100. For example, 25% = 0.25.

Front

What is the percentage of students who passed if 150 out of 200 passed?

Back

75%. (150/200) x 100 = 75%.

Front

How do you calculate 10% of a number?

Back

To calculate 10% of a number, divide the number by 10.