3915% is the change from 20 to 803
Calculation steps:
[( 803 - 20 ) ÷ 20] x 100 = 3915%
Formula
Percentage change = [(803 - 20) / 20] x 100
Subtract the new number by the original number
803 - 20 = 783
783 ÷ 20 = 39.15
39.15 x 100 = 3915%
Example