-98.9% is the change from 996 to 11
Calculation steps:
[( 11 - 996 ) ÷ 996] x 100 = -98.9%
Formula
Percentage change = [(11 - 996) / 996] x 100
Subtract the new number by the original number
11 - 996 = -985
-985 ÷ 996 = -0.9889558232931727
-0.9889558232931727 x 100 = -98.9%