-83.32% is the change from 995 to 166
Calculation steps:
[( 166 - 995 ) ÷ 995] x 100 = -83.32%
Formula
Percentage change = [(166 - 995) / 995] x 100
Subtract the new number by the original number
166 - 995 = -829
-829 ÷ 995 = -0.8331658291457287
-0.8331658291457287 x 100 = -83.32%