-86.64% is the change from 861 to 115
Calculation steps:
[( 115 - 861 ) ÷ 861] x 100 = -86.64%
Formula
Percentage change = [(115 - 861) / 861] x 100
Subtract the new number by the original number
115 - 861 = -746
-746 ÷ 861 = -0.8664343786295006
-0.8664343786295006 x 100 = -86.64%