-83.42% is the change from 983 to 163
Calculation steps:
[( 163 - 983 ) ÷ 983] x 100 = -83.42%
Formula
Percentage change = [(163 - 983) / 983] x 100
Subtract the new number by the original number
163 - 983 = -820
-820 ÷ 983 = -0.8341810783316378
-0.8341810783316378 x 100 = -83.42%