-82.54% is the change from 985 to 172
Calculation steps:
[( 172 - 985 ) ÷ 985] x 100 = -82.54%
Formula
Percentage change = [(172 - 985) / 985] x 100
Subtract the new number by the original number
172 - 985 = -813
-813 ÷ 985 = -0.8253807106598985
-0.8253807106598985 x 100 = -82.54%