For tickets between $20-$40 on each convention I went to.
For hotel if I get a hotel I say at least $70 for 2 days, if there's a convention close to where I live that's less than an hour from where I live then I don't need a hotel I can go back home after each day at a convention.
For food, well it depends though I don't really like eating out that much so I go to grocery store or convenience store nearby to get snacks, ready to eat fruits, and drinks well I don't spent that much if I'm buying like generic snacks. If I do eat out, I spend probably at least $20.
Cosplaying well $20-$100 depends on who I'm going as and what stuff I need, my limit is less than $100 per costume though. I go to thrift stores to get like shoes to alter myself and clothes my mom can alter for my cosplay, look for sales at store that sells fabric or buy cheap but good enough kind of fabric. Only thing I buy online are wigs unless I'm unable to make something then I can get something that's part of my costume online as well. I usually spent most money on wig per character.
I spent at least $40 at dealers room, probably way more depends though.
I don't feel like adding it all up.