2275% is the change from 40 to 950
Calculation steps:
[( 950 - 40 ) ÷ 40] x 100 = 2275%
Formula
Percentage change = [(950 - 40) / 40] x 100
Subtract the new number by the original number
950 - 40 = 910
910 ÷ 40 = 22.75
22.75 x 100 = 2275%
Example