-15.67% is the change from 804 to 678
Calculation steps:
[( 678 - 804 ) ÷ 804] x 100 = -15.67%
Formula
Percentage change = [(678 - 804) / 804] x 100
Subtract the new number by the original number
678 - 804 = -126
-126 ÷ 804 = -0.15671641791044777
-0.15671641791044777 x 100 = -15.67%