2021.95% is the change from 41 to 870
Calculation steps:
[( 870 - 41 ) ÷ 41] x 100 = 2021.95%
Formula
Percentage change = [(870 - 41) / 41] x 100
Subtract the new number by the original number
870 - 41 = 829
829 ÷ 41 = 20.21951219512195
20.21951219512195 x 100 = 2021.95%