84.38% is the change from 128 to 236
Calculation steps:
[( 236 - 128 ) ÷ 128] x 100 = 84.38%
Formula
Percentage change = [(236 - 128) / 128] x 100
Subtract the new number by the original number
236 - 128 = 108
108 ÷ 128 = 0.84375
0.84375 x 100 = 84.38%