-38.24% is the change from 68 to 42
Calculation steps:
[( 42 - 68 ) ÷ 68] x 100 = -38.24%
Formula
Percentage change = [(42 - 68) / 68] x 100
Subtract the new number by the original number
42 - 68 = -26
-26 ÷ 68 = -0.38235294117647056
-0.38235294117647056 x 100 = -38.24%