-4.98% is the change from 863 to 820
Calculation steps:
[( 820 - 863 ) ÷ 863] x 100 = -4.98%
Formula
Percentage change = [(820 - 863) / 863] x 100
Subtract the new number by the original number
820 - 863 = -43
-43 ÷ 863 = -0.04982618771726535
-0.04982618771726535 x 100 = -4.98%