-83.47% is the change from 986 to 163
Calculation steps:
[( 163 - 986 ) ÷ 986] x 100 = -83.47%
Formula
Percentage change = [(163 - 986) / 986] x 100
Subtract the new number by the original number
163 - 986 = -823
-823 ÷ 986 = -0.834685598377282
-0.834685598377282 x 100 = -83.47%