Agente42 on 18 September 2017
The reasoned comparison is unique SKU relation against the installed base.
Mario Kart Wii x GTAV on PS3
New Mario Bros Wii x GTAV on PS3.
That is more correct. By two factors:
First, the games are contemporary, so do not consider population change as a factor. It also does not have to consider the availability of the consoles in each market, since the availability in this case, Wii and PS3, is similar.
