Problem in Foreign currency Print

Dear experts,

In Invoice total Foreign currency Not getting printed. It's getting local /Base currency. I used followings:
Anybody can tell what can be the solution?

Thank you

Code:

 
Local: Field: Amount Forex Field: Set as:$$CollAmtTotal:Inventoryentries:$Amount
Local: Field: Amount Forex Field:Format      : "No Zero, Symbol," + ##ShowForex