It appears that the data usage being displayed by KWGT is inaccurate, although I'm unsure of whether this is an issue with my formula or the app itself. The formula I am using (as well as the output) are attached below as file "1".
As you can see by comparing to file "2", the actual mobile data usage is 1.03gb, not the 87.75mb reported by KWGT. I also thought that, perhaps, KWGT was only able to see data usage from the date it was installed, but as you can see in file "3" even that information is not accurate, as from that date I've used 197mb of mobile data. To make things even more interesting, KWGT changed the amount of data it's reporting as used to a lower value just in the time it's taken me to type out this message, which you can see in file "4."
So I guess my questions are this:
1. How is KWGT actually obtaining this information? Is it measuring the data usage itself, or is it doing an API call to the OS's data usage stats?
2. Either way, how are the numbers so incredibly far off? Is there something wrong in my formula?
3. Why would KWGT report 87.75mb and then suddenly report the lower number of 68.86mb?
Any help is appreciated! Thanks!