-70.9% is the change from 804 to 234
Calculation steps:
[( 234 - 804 ) ÷ 804] x 100 = -70.9%
Formula
Percentage change = [(234 - 804) / 804] x 100
Subtract the new number by the original number
234 - 804 = -570
-570 ÷ 804 = -0.7089552238805971
-0.7089552238805971 x 100 = -70.9%