-23.52% is the change from 863 to 660
Calculation steps:
[( 660 - 863 ) ÷ 863] x 100 = -23.52%
Formula
Percentage change = [(660 - 863) / 863] x 100
Subtract the new number by the original number
660 - 863 = -203
-203 ÷ 863 = -0.23522595596755505
-0.23522595596755505 x 100 = -23.52%