-16.18% is the change from 68 to 57
Calculation steps:
[( 57 - 68 ) ÷ 68] x 100 = -16.18%
Formula
Percentage change = [(57 - 68) / 68] x 100
Subtract the new number by the original number
57 - 68 = -11
-11 ÷ 68 = -0.16176470588235295
-0.16176470588235295 x 100 = -16.18%