-13.79% is the change from 58 to 50
Calculation steps:
[( 50 - 58 ) ÷ 58] x 100 = -13.79%
Formula
Percentage change = [(50 - 58) / 58] x 100
Subtract the new number by the original number
50 - 58 = -8
-8 ÷ 58 = -0.13793103448275862
-0.13793103448275862 x 100 = -13.79%