-98.65% is the change from 813 to 11
Calculation steps:
[( 11 - 813 ) ÷ 813] x 100 = -98.65%
Formula
Percentage change = [(11 - 813) / 813] x 100
Subtract the new number by the original number
11 - 813 = -802
-802 ÷ 813 = -0.986469864698647
-0.986469864698647 x 100 = -98.65%