-79.6% is the change from 799 to 163
Calculation steps:
[( 163 - 799 ) ÷ 799] x 100 = -79.6%
Formula
Percentage change = [(163 - 799) / 799] x 100
Subtract the new number by the original number
163 - 799 = -636
-636 ÷ 799 = -0.7959949937421777
-0.7959949937421777 x 100 = -79.6%