2245% is the change from 40 to 938
Calculation steps:
[( 938 - 40 ) ÷ 40] x 100 = 2245%
Formula
Percentage change = [(938 - 40) / 40] x 100
Subtract the new number by the original number
938 - 40 = 898
898 ÷ 40 = 22.45
22.45 x 100 = 2245%
Example