-82.5% is the change from 983 to 172
Calculation steps:
[( 172 - 983 ) ÷ 983] x 100 = -82.5%
Formula
Percentage change = [(172 - 983) / 983] x 100
Subtract the new number by the original number
172 - 983 = -811
-811 ÷ 983 = -0.8250254323499492
-0.8250254323499492 x 100 = -82.5%