text: # 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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