-64.31% is the change from 863 to 308
Calculation steps:
[( 308 - 863 ) ÷ 863] x 100 = -64.31%
Formula
Percentage change = [(308 - 863) / 863] x 100
Subtract the new number by the original number
308 - 863 = -555
-555 ÷ 863 = -0.6431054461181923
-0.6431054461181923 x 100 = -64.31%