-35.95% is the change from 804 to 515
Calculation steps:
[( 515 - 804 ) ÷ 804] x 100 = -35.95%
Formula
Percentage change = [(515 - 804) / 804] x 100
Subtract the new number by the original number
515 - 804 = -289
-289 ÷ 804 = -0.35945273631840796
-0.35945273631840796 x 100 = -35.95%