2242.5% is the change from 40 to 937
Calculation steps:
[( 937 - 40 ) ÷ 40] x 100 = 2242.5%
Formula
Percentage change = [(937 - 40) / 40] x 100
Subtract the new number by the original number
937 - 40 = 897
897 ÷ 40 = 22.425
22.425 x 100 = 2242.5%
Example