-28.66% is the change from 813 to 580
Calculation steps:
[( 580 - 813 ) ÷ 813] x 100 = -28.66%
Formula
Percentage change = [(580 - 813) / 813] x 100
Subtract the new number by the original number
580 - 813 = -233
-233 ÷ 813 = -0.2865928659286593
-0.2865928659286593 x 100 = -28.66%