-80.6% is the change from 804 to 156
Calculation steps:
[( 156 - 804 ) ÷ 804] x 100 = -80.6%
Formula
Percentage change = [(156 - 804) / 804] x 100
Subtract the new number by the original number
156 - 804 = -648
-648 ÷ 804 = -0.8059701492537313
-0.8059701492537313 x 100 = -80.6%