Percentage change calculator

The Percentage Change Calculator (% change calculator) will quantify the change from one number to another and express the change as an increase or decrease.
This is a % change calculator. From 10 apples to 20 apples is a 100% increase (change) in the number of apples.
This calculator will be most commonly used when there is an “old” and “new” number or an “initial” and “final” value. A positive change is expressed as an increase amount of the percentage value while a negative change is expressed as a decrease amount of the absolute value of the percentage value.