Hello everyone. I am having problems with the storage on my iPhone. I have 8 gigabytes, but only get to use 5.3. As seen here

However, from my math, I have used less than 1 gigabyte. As seen here


I have looked it up, but there are only tips on how to preserve your storage space. If y'all can't help me, I will bring it to the Apple Store

Well I would think the 2.7 gigs that isn't included is the stuff that is essential to the phone
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Note: I only have 3 apps that I've actually installed

If I updated and app wouldn't the new amount of space it takes up show up next to the app

I understand that the 2.7 gigs are from preinstalled apps