-66.42% is the change from 804 to 270
Calculation steps:
[( 270 - 804 ) ÷ 804] x 100 = -66.42%
Formula
Percentage change = [(270 - 804) / 804] x 100
Subtract the new number by the original number
270 - 804 = -534
-534 ÷ 804 = -0.664179104477612
-0.664179104477612 x 100 = -66.42%