3125% is the change from 4 to 129
Calculation steps:
[( 129 - 4 ) ÷ 4] x 100 = 3125%
Formula
Percentage change = [(129 - 4) / 4] x 100
Subtract the new number by the original number
129 - 4 = 125
125 ÷ 4 = 31.25
31.25 x 100 = 3125%
Example