620% is the change from 20 to 144
Calculation steps:
[( 144 - 20 ) ÷ 20] x 100 = 620%
Formula
Percentage change = [(144 - 20) / 20] x 100
Subtract the new number by the original number
144 - 20 = 124
124 ÷ 20 = 6.2
6.2 x 100 = 620%
Example