Average $3.50 for a beer, average $16 for a meal.
I like my cocktails and so I plan on $100 a day, but that's my meal and alcohol budget. Some days it is more, some days it is less. That does not include my diving.
I can buy a meal for $3.50, maybe less, if I buy at the street vendors. $7 if I eat at Los Cocos. $12 if I eat at Papi's. Twice to three times as much, if I eat in some of the "fancier" places.