2190% is the change from 40 to 916
Calculation steps:
[( 916 - 40 ) ÷ 40] x 100 = 2190%
Formula
Percentage change = [(916 - 40) / 40] x 100
Subtract the new number by the original number
916 - 40 = 876
876 ÷ 40 = 21.9
21.9 x 100 = 2190%
Example