-63.73% is the change from 863 to 313
Calculation steps:
[( 313 - 863 ) ÷ 863] x 100 = -63.73%
Formula
Percentage change = [(313 - 863) / 863] x 100
Subtract the new number by the original number
313 - 863 = -550
-550 ÷ 863 = -0.6373117033603708
-0.6373117033603708 x 100 = -63.73%