With $50 will have enough money to buy all the ingredients to make paella for 20 people. At $25 'sell' per dish, that makes a total of $500, $450 profit. All the seafood including prawns, mussels, calamari and others cost around $30. Rice, paprika, salt, saffron, tomato, onion and capsicum cost around $10. $10 to run it.