-60.2% is the change from 804 to 320
Calculation steps:
[( 320 - 804 ) ÷ 804] x 100 = -60.2%
Formula
Percentage change = [(320 - 804) / 804] x 100
Subtract the new number by the original number
320 - 804 = -484
-484 ÷ 804 = -0.6019900497512438
-0.6019900497512438 x 100 = -60.2%