-27.31% is the change from 864 to 628
Calculation steps:
[( 628 - 864 ) ÷ 864] x 100 = -27.31%
Formula
Percentage change = [(628 - 864) / 864] x 100
Subtract the new number by the original number
628 - 864 = -236
-236 ÷ 864 = -0.27314814814814814
-0.27314814814814814 x 100 = -27.31%