-27% is the change from 863 to 630
Calculation steps:
[( 630 - 863 ) ÷ 863] x 100 = -27%
Formula
Percentage change = [(630 - 863) / 863] x 100
Subtract the new number by the original number
630 - 863 = -233
-233 ÷ 863 = -0.26998841251448435
-0.26998841251448435 x 100 = -27%