4110% is the change from 20 to 842
Calculation steps:
[( 842 - 20 ) ÷ 20] x 100 = 4110%
Formula
Percentage change = [(842 - 20) / 20] x 100
Subtract the new number by the original number
842 - 20 = 822
822 ÷ 20 = 41.1
41.1 x 100 = 4110%
Example