-97.33% is the change from 863 to 23
Calculation steps:
[( 23 - 863 ) ÷ 863] x 100 = -97.33%
Formula
Percentage change = [(23 - 863) / 863] x 100
Subtract the new number by the original number
23 - 863 = -840
-840 ÷ 863 = -0.9733487833140209
-0.9733487833140209 x 100 = -97.33%