-83.71% is the change from 804 to 131
Calculation steps:
[( 131 - 804 ) ÷ 804] x 100 = -83.71%
Formula
Percentage change = [(131 - 804) / 804] x 100
Subtract the new number by the original number
131 - 804 = -673
-673 ÷ 804 = -0.8370646766169154
-0.8370646766169154 x 100 = -83.71%