3010% is the change from 20 to 622
Calculation steps:
[( 622 - 20 ) ÷ 20] x 100 = 3010%
Formula
Percentage change = [(622 - 20) / 20] x 100
Subtract the new number by the original number
622 - 20 = 602
602 ÷ 20 = 30.1
30.1 x 100 = 3010%
Example