54.39% is the change from 57 to 88
Calculation steps:
[( 88 - 57 ) ÷ 57] x 100 = 54.39%
Formula
Percentage change = [(88 - 57) / 57] x 100
Subtract the new number by the original number
88 - 57 = 31
31 ÷ 57 = 0.543859649122807
0.543859649122807 x 100 = 54.39%