SSRS背景颜色表示

Question

这是我尝试实现的公式，我的“ AND”表达式似乎无效：RED =超出平均总索赔额AND（（％Cash> = AVG％CASH + STD DEV）或（％Insured Not >> AVG InsNC + Std Dev））

SSRS表达式：

=iif((Sum(Fields!REDEMPTION_COUNT.Value) > (Sum(Fields!REDEMPTION_COUNT.Value, "Results")/CountDistinct(Fields!NABP_ID.Value,"Results"))) AND 
(
((Sum(Fields!CASH_REDEMPTIONS.Value)/Sum(Fields!REDEMPTION_COUNT.Value)) >= 
((Sum(Fields!CASH_REDEMPTIONS.Value, "Results")/Sum(Fields!REDEMPTION_COUNT.Value, "Results"))+ Stdev(Fields!CASH_REDEMPTIONS.Value/Fields!REDEMPTION_COUNT.Value,"Results"))) 
OR 
((SUM(Fields!INC_REDEMPTIONS.Value)/SUM(Fields!REDEMPTION_COUNT.Value)) >= ((Sum(Fields!INC_REDEMPTIONS.Value, "Results")/Sum(Fields!REDEMPTION_COUNT.Value, "Results")) +
 Stdev(Fields!INC_REDEMPTIONS.Value/Fields!REDEMPTION_COUNT.Value,"Results")))
)
,"Tomato", "White")

谢谢！