1567.5% is the change from 40 to 667
Calculation steps:
[( 667 - 40 ) ÷ 40] x 100 = 1567.5%
Formula
Percentage change = [(667 - 40) / 40] x 100
Subtract the new number by the original number
667 - 40 = 627
627 ÷ 40 = 15.675
15.675 x 100 = 1567.5%
Example