Hello how may I help you? Can you help me with something? I'd love to help you. I need to know how much dog food I should go through in a week. Sure. What kind of dog do you have? I have 3 bull dog in my house. Alright. It looks like you should go through about one large bag of food per week. How much it will cost me? That depends on the food brand and could cost anywhere from $14-$60 for higher end foods. Thank you for the information. Any time!