103.13% is the change from 128 to 260
Calculation steps:
[( 260 - 128 ) ÷ 128] x 100 = 103.13%
Formula
Percentage change = [(260 - 128) / 128] x 100
Subtract the new number by the original number
260 - 128 = 132
132 ÷ 128 = 1.03125
1.03125 x 100 = 103.13%