1487.5% is the change from 40 to 635
Calculation steps:
[( 635 - 40 ) ÷ 40] x 100 = 1487.5%
Formula
Percentage change = [(635 - 40) / 40] x 100
Subtract the new number by the original number
635 - 40 = 595
595 ÷ 40 = 14.875
14.875 x 100 = 1487.5%
Example