2000% is the change from 41 to 861
Calculation steps:
[( 861 - 41 ) ÷ 41] x 100 = 2000%
Formula
Percentage change = [(861 - 41) / 41] x 100
Subtract the new number by the original number
861 - 41 = 820
820 ÷ 41 = 20
20 x 100 = 2000%
Example