38.28% is the change from 128 to 177
Calculation steps:
[( 177 - 128 ) ÷ 128] x 100 = 38.28%
Formula
Percentage change = [(177 - 128) / 128] x 100
Subtract the new number by the original number
177 - 128 = 49
49 ÷ 128 = 0.3828125
0.3828125 x 100 = 38.28%