-16.54% is the change from 804 to 671
Calculation steps:
[( 671 - 804 ) ÷ 804] x 100 = -16.54%
Formula
Percentage change = [(671 - 804) / 804] x 100
Subtract the new number by the original number
671 - 804 = -133
-133 ÷ 804 = -0.1654228855721393
-0.1654228855721393 x 100 = -16.54%