-79.98% is the change from 809 to 162
Calculation steps:
[( 162 - 809 ) ÷ 809] x 100 = -79.98%
Formula
Percentage change = [(162 - 809) / 809] x 100
Subtract the new number by the original number
162 - 809 = -647
-647 ÷ 809 = -0.799752781211372
-0.799752781211372 x 100 = -79.98%