-29.1% is the change from 804 to 570
Calculation steps:
[( 570 - 804 ) ÷ 804] x 100 = -29.1%
Formula
Percentage change = [(570 - 804) / 804] x 100
Subtract the new number by the original number
570 - 804 = -234
-234 ÷ 804 = -0.291044776119403
-0.291044776119403 x 100 = -29.1%