-17.41% is the change from 804 to 664
Calculation steps:
[( 664 - 804 ) ÷ 804] x 100 = -17.41%
Formula
Percentage change = [(664 - 804) / 804] x 100
Subtract the new number by the original number
664 - 804 = -140
-140 ÷ 804 = -0.17412935323383086
-0.17412935323383086 x 100 = -17.41%