I budget $100 US per day and rarely spend all of that. Here are some prices from 2 weeks ago:

Jerk pork: $500
Soup: $250
Patty Man: $200 -- it might actually have been $150
Fruit: $300 mango -- one time got a pineapple, coconut and papaya and it was $1800.....yes I was ripped off but I expected it and it was the one purchase I made from her
Lunch Box: about $500-$600 for a full meal