How can i stop my mobile data increasing 7.5% each time I turn it on? (HTC one M7)

[AC Question]

I updated to the lastest operating system on my HTC one M7, and now everytime I turn on my mobile data it increases 7.5%. At this rate I will never be able to use my phone.
I have looked at all running apps and cannot find out why this is happening.
Thanks,
Ian

 

[Golfdriver97]

You can restrict background data being downloaded in settings>data usage. Click menu, and you should get a restrict background data option.