-79.08% is the change from 239 to 50
Calculation steps:
[( 50 - 239 ) ÷ 239] x 100 = -79.08%
Formula
Percentage change = [(50 - 239) / 239] x 100
Subtract the new number by the original number
50 - 239 = -189
-189 ÷ 239 = -0.7907949790794979
-0.7907949790794979 x 100 = -79.08%