how do you get a percentage on a calculator
To calculate the percentage increase: First: work out the difference (increase) between the two numbers you are comparing. Increase = New Number-Original Number. Then: divide the increase by the original number and multiply the answer by 100.% increase = Increase Ã· Original Number Ã 100. If your answer is a negative number then this is a percentage decrease.ecrease = Original Number-New Number. Then: divide the decrease by the original number and multiply the answer by 100. % Decrease = Decrease Ã· Original Number Ã 100. If your answer is a negative number then this is a percentage increase.