-73.7% is the change from 863 to 227
Calculation steps:
[( 227 - 863 ) ÷ 863] x 100 = -73.7%
Formula
Percentage change = [(227 - 863) / 863] x 100
Subtract the new number by the original number
227 - 863 = -636
-636 ÷ 863 = -0.7369640787949016
-0.7369640787949016 x 100 = -73.7%