Thanks for stopping by the Apple Support Communities. From your post, I understand there seems to be a discrepancy between the amount of iCloud storage you're taking up. You see that backups take up 4.7GB on one screen, but when you investigate further there is 0kb reported. I'm happy to help!
First, try checking your iCloud storage from another device, if possible. You can use another iOS device, by going to Apple menu > System Preferences > iCloud > Manage on a Mac, or using iCloud for Windows on a Windows PC: Download iCloud for Windows - Apple Support .
If the discrepancy is only on this device, force close Settings: How to force an app to close on your iPhone, iPad, or iPod touch - Apple Support , then restart your device: Restart your iPhone, iPad, or iPod touch - Apple Support .
Should you still need some help managing your iCloud storage, check out Manage your iCloud storage - Apple Support .
Regards.