How you find the percent of increase and decrease?

Answer:
first calculate the value of increase e.g. if 100 increases to 110 then the increase is 10.
Then you calculate the percentage increase by diving the increase by the original number then multiply by 100 i.e. (10 divided 100 = 0.1, multiplied by 100 = 10%)
or (10/100)*100

same for % decrease but in reverse.
First answer by Cleverem. Last edit by Cleverem. Contributor trust: 6 [recommend contributor recommended]. Question popularity: 1 [recommend question].