3335% is the change from 20 to 687
Calculation steps:
[( 687 - 20 ) ÷ 20] x 100 = 3335%
Formula
Percentage change = [(687 - 20) / 20] x 100
Subtract the new number by the original number
687 - 20 = 667
667 ÷ 20 = 33.35
33.35 x 100 = 3335%
Example