-71.41% is the change from 836 to 239
Calculation steps:
[( 239 - 836 ) ÷ 836] x 100 = -71.41%
Formula
Percentage change = [(239 - 836) / 836] x 100
Subtract the new number by the original number
239 - 836 = -597
-597 ÷ 836 = -0.7141148325358851
-0.7141148325358851 x 100 = -71.41%