-91.44% is the change from 993 to 85
Calculation steps:
[( 85 - 993 ) ÷ 993] x 100 = -91.44%
Formula
Percentage change = [(85 - 993) / 993] x 100
Subtract the new number by the original number
85 - 993 = -908
-908 ÷ 993 = -0.9144008056394763
-0.9144008056394763 x 100 = -91.44%