-17.77% is the change from 985 to 810
Calculation steps:
[( 810 - 985 ) ÷ 985] x 100 = -17.77%
Formula
Percentage change = [(810 - 985) / 985] x 100
Subtract the new number by the original number
810 - 985 = -175
-175 ÷ 985 = -0.17766497461928935
-0.17766497461928935 x 100 = -17.77%