51.56% is the change from 128 to 194
Calculation steps:
[( 194 - 128 ) ÷ 128] x 100 = 51.56%
Formula
Percentage change = [(194 - 128) / 128] x 100
Subtract the new number by the original number
194 - 128 = 66
66 ÷ 128 = 0.515625
0.515625 x 100 = 51.56%