Reverse Percent Calculator. Add 1 to Decimal. Sometimes it is easier to show percentage decrease as a negative number to do this follow the formula above to calculate percentage increase your answer will be a negative number if there was a decrease.
How to Calculate Reverse Percentage.
Divide that amount by the absolute value of the starting value. Reverse percentages help us to work out the original price or value of an item after it has been increased or decreased in value for example following a price increase or a sale. Divide Final Amount by Decimal. Divide the end value by the starting value.