-27.59% is the change from 58 to 42
Calculation steps:
[( 42 - 58 ) ÷ 58] x 100 = -27.59%
Formula
Percentage change = [(42 - 58) / 58] x 100
Subtract the new number by the original number
42 - 58 = -16
-16 ÷ 58 = -0.27586206896551724
-0.27586206896551724 x 100 = -27.59%