1. Included in any judgment filed shall be a computation of the costs, if they have been ascertained. The clerk shall insert a computation of the costs in the copies and docket of the judgment.
2. If costs are not ascertained or included in the judgment at the time of entry, the clerk shall, within 2 days after costs are ascertained, insert the same in a blank left in the judgment for that purpose and shall make a similar insertion of costs in the copies and docket of the judgment.