-78.4% is the change from 861 to 186
Calculation steps:
[( 186 - 861 ) ÷ 861] x 100 = -78.4%
Formula
Percentage change = [(186 - 861) / 861] x 100
Subtract the new number by the original number
186 - 861 = -675
-675 ÷ 861 = -0.7839721254355401
-0.7839721254355401 x 100 = -78.4%