-7.3% is the change from 863 to 800
Calculation steps:
[( 800 - 863 ) ÷ 863] x 100 = -7.3%
Formula
Percentage change = [(800 - 863) / 863] x 100
Subtract the new number by the original number
800 - 863 = -63
-63 ÷ 863 = -0.07300115874855156
-0.07300115874855156 x 100 = -7.3%