128.57% is the change from 56 to 128
Calculation steps:
[( 128 - 56 ) ÷ 56] x 100 = 128.57%
Formula
Percentage change = [(128 - 56) / 56] x 100
Subtract the new number by the original number
128 - 56 = 72
72 ÷ 56 = 1.2857142857142858
1.2857142857142858 x 100 = 128.57%