The common belief is that Jesus was fully God and fully man; that is, 100% God and 100% man.

In John 17:5, Jesus asks the Father to return his glory as he had before he became flesh. So, his glory was not limited, but taken away or relinquished. Therefore, Jesus lost an attribute of God. If you don't possess all attributes of what God is (e.g. possess 99% attributes), then you cannot claim to be fully God.

So my question to those who believe in the hypostatic union of Christ: how is Jesus considered fully God during his earthly ministry when he declared that he doesn't have the glory of God?