-5.56% is the change from 863 to 815
Calculation steps:
[( 815 - 863 ) ÷ 863] x 100 = -5.56%
Formula
Percentage change = [(815 - 863) / 863] x 100
Subtract the new number by the original number
815 - 863 = -48
-48 ÷ 863 = -0.055619930475086905
-0.055619930475086905 x 100 = -5.56%