I need help with this please!!

1. Yellow Zephyr designs and sells medical equipment, mostly to hospitals and other larger facilities. One of its products, the Michelangelo, is a remote-controlled surgical machine that is operated inside the operating room by an experienced surgeon. YZ recently sold one unit to the Avera hospital in Marshall. The list price for the machine alone is $115,000. The total contract price is $122,500. The standard Michelangelo contract includes the machine, installation, staff training, a 2-year warranty, and all disposable supplies (plastic covers, cutting tips, and the like) for 2 years. YZ estimates the following stand-alone prices for each of the normal services: installation, $3,500; staff training, $2,000; warranty, $750; disposables, $2,200. Required: - Identify all performance obligations for this sale. For each, identify the dollar amount of revenue assigned to the performance obligation and the time period over which the revenue should be recognized. Show calculations for how you allocate the $122,500 contract amount - Prepare joumal entries to recognize the first two of the performance obligations that will be completed. - Explain in your own words how deferring recognition on certain performance obligations improves the quality of YZ 's financial statements