1477.5% is the change from 40 to 631
Calculation steps:
[( 631 - 40 ) ÷ 40] x 100 = 1477.5%
Formula
Percentage change = [(631 - 40) / 40] x 100
Subtract the new number by the original number
631 - 40 = 591
591 ÷ 40 = 14.775
14.775 x 100 = 1477.5%
Example