4030% is the change from 20 to 826
Calculation steps:
[( 826 - 20 ) ÷ 20] x 100 = 4030%
Formula
Percentage change = [(826 - 20) / 20] x 100
Subtract the new number by the original number
826 - 20 = 806
806 ÷ 20 = 40.3
40.3 x 100 = 4030%
Example