V 2 V 1 V 1 100. Percent change calculates the percent increase or decrease. However pragmatically we understand that there is still meaning in the change.
Percentage change is calculated by dividing the difference between the two amounts by the original amount.
Percentage change equals the change in value divided by the absolute value of the original value multiplied by 100. The formula for calculating change is new value old value old value. Fire up Excel and give it a try. Increase Increase Original Number 100.