This worksheet is about finding the percentage change.
A metal bar increases its length from 2m to 2.01m after heating.
Find the percentage increase in its length.
Actual increase = 2.01 - 2 = 0.01m .
Percentage decrease = (actual increase / original length) x 100 = (0.01/2) x 100 = 0.5%
A woman reduced her weight from 80kg to 63kg after dieting.
Find the percentage decrease in her weight.
Actual decrease = 80 - 63 = 17kg.
Percentage decrease = (actual decrease / original weight) x 100 = (17/80) x 100 = 21.25%