-63.96% is the change from 863 to 311
Calculation steps:
[( 311 - 863 ) ÷ 863] x 100 = -63.96%
Formula
Percentage change = [(311 - 863) / 863] x 100
Subtract the new number by the original number
311 - 863 = -552
-552 ÷ 863 = -0.6396292004634995
-0.6396292004634995 x 100 = -63.96%