-36.44% is the change from 804 to 511
Calculation steps:
[( 511 - 804 ) ÷ 804] x 100 = -36.44%
Formula
Percentage change = [(511 - 804) / 804] x 100
Subtract the new number by the original number
511 - 804 = -293
-293 ÷ 804 = -0.3644278606965174
-0.3644278606965174 x 100 = -36.44%