2155% is the change from 40 to 902
Calculation steps:
[( 902 - 40 ) ÷ 40] x 100 = 2155%
Formula
Percentage change = [(902 - 40) / 40] x 100
Subtract the new number by the original number
902 - 40 = 862
862 ÷ 40 = 21.55
21.55 x 100 = 2155%
Example