Transferring apple credit to PayPal

Funds in an Apple Account (formerly Apple ID) are non-transferable and non-refundable. The Apple Support article I linked to below explains how funds in an Apple Account may be used.

What you can buy with your Apple Gift Card or Apple Account balance - Apple Support

If you want to transfer funds to PayPal you will need to use Apple Cash. An instant transfer is subject to a transfer fee.

What are you referring to when you say Apple credit? Are you referring to Apple Cash, Apple Card available credit or funds in your Apple Account?