-79.8% is the change from 797 to 161
Calculation steps:
[( 161 - 797 ) ÷ 797] x 100 = -79.8%
Formula
Percentage change = [(161 - 797) / 797] x 100
Subtract the new number by the original number
161 - 797 = -636
-636 ÷ 797 = -0.7979924717691342
-0.7979924717691342 x 100 = -79.8%