-21.89% is the change from 804 to 628
Calculation steps:
[( 628 - 804 ) ÷ 804] x 100 = -21.89%
Formula
Percentage change = [(628 - 804) / 804] x 100
Subtract the new number by the original number
628 - 804 = -176
-176 ÷ 804 = -0.21890547263681592
-0.21890547263681592 x 100 = -21.89%