3305% is the change from 20 to 681
Calculation steps:
[( 681 - 20 ) ÷ 20] x 100 = 3305%
Formula
Percentage change = [(681 - 20) / 20] x 100
Subtract the new number by the original number
681 - 20 = 661
661 ÷ 20 = 33.05
33.05 x 100 = 3305%
Example