-72.51% is the change from 804 to 221
Calculation steps:
[( 221 - 804 ) ÷ 804] x 100 = -72.51%
Formula
Percentage change = [(221 - 804) / 804] x 100
Subtract the new number by the original number
221 - 804 = -583
-583 ÷ 804 = -0.7251243781094527
-0.7251243781094527 x 100 = -72.51%