The PM Approved Change Order, sorted by the Approved Change Order # (ACO), is a form designed to be submitted to the owner. If the Project parameter is left blank the previous amount of approved change orders is the total approved amount for all change orders with sequence numbers (assigned in PM Approved Change Orders) less than the sequence number of the currently printed change order for all Projects under the Contract. If the Project parameter is used the prior amount will be calculated based on the sequence numbers for that particular project only.