-79.98% is the change from 804 to 161
Calculation steps:
[( 161 - 804 ) ÷ 804] x 100 = -79.98%
Formula
Percentage change = [(161 - 804) / 804] x 100
Subtract the new number by the original number
161 - 804 = -643
-643 ÷ 804 = -0.7997512437810945
-0.7997512437810945 x 100 = -79.98%