4205% is the change from 20 to 861
Calculation steps:
[( 861 - 20 ) ÷ 20] x 100 = 4205%
Formula
Percentage change = [(861 - 20) / 20] x 100
Subtract the new number by the original number
861 - 20 = 841
841 ÷ 20 = 42.05
42.05 x 100 = 4205%
Example