The Vault - Burn NFTs

On the NFT, you can see base Vault Points value for the NFT, and the Burn Bonus multiplier.

Clicking the Burn button will show the following pop-up:

Here you can choose how many of the NFTs you want to Burn (you might have multiple duplicates) and it will tell you the amount of Vault Points you will receive for doing so.

Burning NFTs for Vault Points will trigger a Compound of you currently pending ETH Rewards, so if you wish to Harvest them, do so before Burning any NFTs.