-90.48% is the change from 893 to 85
Calculation steps:
[( 85 - 893 ) ÷ 893] x 100 = -90.48%
Formula
Percentage change = [(85 - 893) / 893] x 100
Subtract the new number by the original number
85 - 893 = -808
-808 ÷ 893 = -0.9048152295632699
-0.9048152295632699 x 100 = -90.48%