-98.67% is the change from 826 to 11
Calculation steps:
[( 11 - 826 ) ÷ 826] x 100 = -98.67%
Formula
Percentage change = [(11 - 826) / 826] x 100
Subtract the new number by the original number
11 - 826 = -815
-815 ÷ 826 = -0.986682808716707
-0.986682808716707 x 100 = -98.67%