-84.09% is the change from 861 to 137
Calculation steps:
[( 137 - 861 ) ÷ 861] x 100 = -84.09%
Formula
Percentage change = [(137 - 861) / 861] x 100
Subtract the new number by the original number
137 - 861 = -724
-724 ÷ 861 = -0.8408826945412311
-0.8408826945412311 x 100 = -84.09%