2100% is the change from 41 to 902
Calculation steps:
[( 902 - 41 ) ÷ 41] x 100 = 2100%
Formula
Percentage change = [(902 - 41) / 41] x 100
Subtract the new number by the original number
902 - 41 = 861
861 ÷ 41 = 21
21 x 100 = 2100%
Example