Percentage increase should only be used when the beginning and ending numbers are both positive. If your answer is a negative number then this is a percentage increase. Plug in the numbers from the problem into the equation.
How to calculate percentage change and percentage formula.
239 179 100-179239100 which is 251 decrease but how would i change this formula when there are some negative numbers. The brackets around the subtraction part of the formula ensure that calculation occurs first. Lets start with a new example. The increase of 17638700 from -11033300 to 6605400 is a meaningful number but to attempt to express it as a percentage increase is meaningless.