109.38% is the change from 128 to 268
Calculation steps:
[( 268 - 128 ) ÷ 128] x 100 = 109.38%
Formula
Percentage change = [(268 - 128) / 128] x 100
Subtract the new number by the original number
268 - 128 = 140
140 ÷ 128 = 1.09375
1.09375 x 100 = 109.38%