-73% is the change from 863 to 233
Calculation steps:
[( 233 - 863 ) ÷ 863] x 100 = -73%
Formula
Percentage change = [(233 - 863) / 863] x 100
Subtract the new number by the original number
233 - 863 = -630
-630 ÷ 863 = -0.7300115874855156
-0.7300115874855156 x 100 = -73%