38.6% is the change from 57 to 79
Calculation steps:
[( 79 - 57 ) ÷ 57] x 100 = 38.6%
Formula
Percentage change = [(79 - 57) / 57] x 100
Subtract the new number by the original number
79 - 57 = 22
22 ÷ 57 = 0.38596491228070173
0.38596491228070173 x 100 = 38.6%