Opening balance for credit card account

SUGGESTED

We are looking to start entering our credit card purchases into Sage. I've got the account set up correctly and the reconciliation started. The problem I am having is what I enter for the opening balance.

Our statement runs from the 15th to the 16th of each month. The previous month's payment comes out on the 9th. ie: Dec 15-Jan 16th the Nov 15-Dec 14 payment comes out on Jan 9th. 

Would I start with the opening balance as the amount due from the previous month and the statement end balance as what is due on the current month?