-82.6% is the change from 983 to 171
Calculation steps:
[( 171 - 983 ) ÷ 983] x 100 = -82.6%
Formula
Percentage change = [(171 - 983) / 983] x 100
Subtract the new number by the original number
171 - 983 = -812
-812 ÷ 983 = -0.8260427263479145
-0.8260427263479145 x 100 = -82.6%