-89.2% is the change from 861 to 93
Calculation steps:
[( 93 - 861 ) ÷ 861] x 100 = -89.2%
Formula
Percentage change = [(93 - 861) / 861] x 100
Subtract the new number by the original number
93 - 861 = -768
-768 ÷ 861 = -0.89198606271777
-0.89198606271777 x 100 = -89.2%