Assume that, on April 1, 2016, a customer visits MicrosoftStore.com and purchases Microsoft Windows 7 Ultimate for $170. Windows 7 Ultimate comes in a DVD format which the customer can use permanently, and Microsoft does not expect that its actions subsequent to April 1, 2016 will affect the value the customer obtains from using the software. Required: How much revenue should Microsoft recognize in 2016 with respect to this particular transaction