-83.08% is the change from 804 to 136
Calculation steps:
[( 136 - 804 ) ÷ 804] x 100 = -83.08%
Formula
Percentage change = [(136 - 804) / 804] x 100
Subtract the new number by the original number
136 - 804 = -668
-668 ÷ 804 = -0.8308457711442786
-0.8308457711442786 x 100 = -83.08%