What is the original contract sum? What is the percentage of retainage on this contract? What is the retainage amount on this payment? What is the current payment due? How much has been billed previously? What is the balance to finish amount? The Owner asks about materials billed that are on the jobsite but have not been installed. Are there any? If so, what and how much? Can you tell what the overall length of the construction schedule is going to be? Have any change orders been processed?