Hi,
Assuming that you have imported the Environment field as a dimension, you can extend the tuple to count the bugs from the production environment:
CASE WHEN ([Issue Type].[Defect],[Measures].[Issues created]) > 0
THEN
([Issue Type].[Bug],[Measures].[Issues created],[Environment].[Production])
/
(([Issue Type].[Defect],[Measures].[Issues created]) +
([Issue Type].[Bug],[Measures].[Issues created]))
END
Kindly,
Janis, eazyBI support