Paddy's Pub was planning to have a street party to celebrate St. Patrick's Day. They contracted to buy 2,000 kegs of beer from Moe's at $50 dollars per keg. When the beer arrived it was found to be flat and Paddy's rejected it. Paddy's Pub could not find another source to buy the same beer for the same price. Paddy's was forced to buy the beer from another source at $55 per keg. What are Paddy's Article 2 damages? Please explain.