C.Assume Amazon sold a Kindle Paperwhite with wi- capabilities for $180 and the company estimated a selling price (ESP) of $20 per unit for future software upgrades. Further assume that a typical cus tomer keeps their Kindle reader about four years. Compute the revenue Amazon would recognize at the point of sale. d.Use the nancial statement effects template to record the initial sale of a Kindle Paperwhite with wi and the accounting adjustment required at the end of the rst year