Skysong Windows manufactures and sells custom storm windows for three-season porches. Skysong also provides installation service for the windows. The installation process does not involve changes in the windows, so this service can be performed by other vendors. Skysong enters into the following contract on July 1, 2020, with a local homeowner. The customer purchases windows for a price of $2,370 and chooses Skysong to do the installation. Skysong charges the same price for the windows irrespective of whether it does the installation or not. The customer pays Skysong $2,050 (which equals the standalone selling price of the windows, which have a cost of $1,140) upon delivery and the remaining balance upon installation of the windows. The windows are delivered on September 1, 2020, Skysong completes installation on October 15, 2020, and the customer pays the balance due. Part 1 Skysong estimates the standalone selling price of the installation based on an estimated cost of $420 plus a margin of 30% on cost. Prepare the journal entries for Skysong in 2020. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No entry" for the account titles and enter 0 for the amounts. Round answer to 0 decimal places, e.g. 5,125.)