308% is the change from 25 to 102
Calculation steps:
[( 102 - 25 ) ÷ 25] x 100 = 308%
Formula
Percentage change = [(102 - 25) / 25] x 100
Subtract the new number by the original number
102 - 25 = 77
77 ÷ 25 = 3.08
3.08 x 100 = 308%
Example