-98.89% is the change from 993 to 11
Calculation steps:
[( 11 - 993 ) ÷ 993] x 100 = -98.89%
Formula
Percentage change = [(11 - 993) / 993] x 100
Subtract the new number by the original number
11 - 993 = -982
-982 ÷ 993 = -0.9889224572004028
-0.9889224572004028 x 100 = -98.89%