-91.36% is the change from 984 to 85
Calculation steps:
[( 85 - 984 ) ÷ 984] x 100 = -91.36%
Formula
Percentage change = [(85 - 984) / 984] x 100
Subtract the new number by the original number
85 - 984 = -899
-899 ÷ 984 = -0.9136178861788617
-0.9136178861788617 x 100 = -91.36%