-71.15% is the change from 863 to 249
Calculation steps:
[( 249 - 863 ) ÷ 863] x 100 = -71.15%
Formula
Percentage change = [(249 - 863) / 863] x 100
Subtract the new number by the original number
249 - 863 = -614
-614 ÷ 863 = -0.7114716106604867
-0.7114716106604867 x 100 = -71.15%