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Percentage Increase Or Decrease




 
Related Topics:
More Lessons for Arithmetic

Math Worksheets

How to find the percentage increase or decrease

Step 1: Calculate the change in value

Step 2: Divide by the original value (i.e. the value before increase or decrease)

Step 3: Multiply by 100%

Percentage increase =

Percentage Increase

Example:

What is the percentage increase from 25 to 29.5?

Solution:

Increase = 29.5 – 25 = 4.5

Percentage increase =

Example:

Last month, Zack earned $500. This month he earned $520. Calculate the percentage increase in his earnings.

Solution :

Increase = $520 – $500 = RM20

Percentage increase =

The percentage increase in his earnings is 4%.

Percentage Decrease

Example:

What is the percentage decrease from 20 to 15 ?

Solution:

Decrease = 20 – 15 = 4 =

Percentage decrease = = 24%

Example:

Last month, Paul earned $500. This month he earned $450. Calculate the percentage decrease in his earnings.

Solution :

Decrease = RM500 – RM450 = RM50

Percentage decrease =

The percentage decrease in his earnings is 10%.

The following video shows more examples of percentage problems




Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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