-82.74% is the change from 985 to 170
Calculation steps:
[( 170 - 985 ) ÷ 985] x 100 = -82.74%
Formula
Percentage change = [(170 - 985) / 985] x 100
Subtract the new number by the original number
170 - 985 = -815
-815 ÷ 985 = -0.8274111675126904
-0.8274111675126904 x 100 = -82.74%