-83.57% is the change from 998 to 164
Calculation steps:
[( 164 - 998 ) ÷ 998] x 100 = -83.57%
Formula
Percentage change = [(164 - 998) / 998] x 100
Subtract the new number by the original number
164 - 998 = -834
-834 ÷ 998 = -0.8356713426853707
-0.8356713426853707 x 100 = -83.57%