I ordered pizza last night. Instead of Pizza Hut, this time I went with Papa John's. Followed the same logic for both places for "tipping" based on

... travel time ($20/hr) + distance (~.60/mile) + extra bulk (+$2 each bag beyond first) minus any baked in delivery fees ($5.99). This usually works out to total delivery cost of about $13-$14.

Papa John's delivery person thanked me at the door and even gave me a free can of soda.

Previous experience with Pizza Hut is that they outsourced to Uber Eats. That driver was in a rush, and he got less than half the tip I provided

What do you think is an appropriate delivery cost for a meal you don't have to cook, and don't have to go out and pick up?