-98.67% is the change from 827 to 11
Calculation steps:
[( 11 - 827 ) ÷ 827] x 100 = -98.67%
Formula
Percentage change = [(11 - 827) / 827] x 100
Subtract the new number by the original number
11 - 827 = -816
-816 ÷ 827 = -0.9866989117291415
-0.9866989117291415 x 100 = -98.67%