-81.72% is the change from 804 to 147
Calculation steps:
[( 147 - 804 ) ÷ 804] x 100 = -81.72%
Formula
Percentage change = [(147 - 804) / 804] x 100
Subtract the new number by the original number
147 - 804 = -657
-657 ÷ 804 = -0.8171641791044776
-0.8171641791044776 x 100 = -81.72%