-4.88% is the change from 861 to 819
Calculation steps:
[( 819 - 861 ) ÷ 861] x 100 = -4.88%
Formula
Percentage change = [(819 - 861) / 861] x 100
Subtract the new number by the original number
819 - 861 = -42
-42 ÷ 861 = -0.04878048780487805
-0.04878048780487805 x 100 = -4.88%