3310% is the change from 20 to 682
Calculation steps:
[( 682 - 20 ) ÷ 20] x 100 = 3310%
Formula
Percentage change = [(682 - 20) / 20] x 100
Subtract the new number by the original number
682 - 20 = 662
662 ÷ 20 = 33.1
33.1 x 100 = 3310%
Example