Question regarding iCloud photos and iPhone storage photos

Ithwang wrote:

When I go to iCloud storage for photos it says it’s 2.4 gb. But when I go to iPhone storage for photos its108.8mb. What’s going on?

It sounds like you have photo optimization enabled.

Are you using iCloud Photos? If so, then see the "Save space on your iPhone" section in:

Use iCloud Photos on iPhone - Apple Support