Percentage Increase and Decrease Worksheets
Percent implies “for every hundred” and the sign % is read as percentage and x % is read as x per cent. In other words, a fraction with denominator 100 is called a percent. For example, 20 % means 20/100 (i.e. 20 parts from 100). This can also be written as 0.2.
Basic Formula:
In order to calculate p % of q, use the formula:
(p/100) x q = (pxq)/100
Work out the difference (increase) between the two numbers you are comparing. Then divide the increase by the original number and multiply the answer by 100. % Increase = Increase ÷ Original Number × 100. If your answer is a negative number, then this is a percentage decrease.
Download Percentage Increase, Percentage Decrease Worksheet PDFs
These math worksheets should be practiced regularly and are free to download in PDF formats.
Percentage Increase, Percentage Decrease Worksheet  1 

Percentage Increase, Percentage Decrease Worksheet  2 

Percentage Increase, Percentage Decrease Worksheet  3 

Percentage Increase, Percentage Decrease Worksheet  4 