I really need to shut up about this, but can’t help myself. Who the hell brainwashed society into using percentages on delivery? For a restaurant there is at least a rough correlation between the work done by the server, the time they’ve spent tending to you, and the cost of the meal. Tipping falls apart under any kind of logical analysis, but there’s like at least a little bit of sense in using a percentage here. If I order a $10 burger that you drop off on my porch should I pay you 10x more if you drop off a $100 steak? If you answered yes, please just get fucked.