-68.03% is the change from 804 to 257
Calculation steps:
[( 257 - 804 ) ÷ 804] x 100 = -68.03%
Formula
Percentage change = [(257 - 804) / 804] x 100
Subtract the new number by the original number
257 - 804 = -547
-547 ÷ 804 = -0.6803482587064676
-0.6803482587064676 x 100 = -68.03%