Roxta Biscuits and Seven Eleven Supermarkets Enter a Contract Where

Roxta Biscuits and Seven Eleven Supermarkets enter a contract where the biscuit-making company will supply 1,000 biscuit packs a day at $50 each to the supermarket chain for the next six months.However,Roxta Biscuits stops their supplies to the supermarkets mid-way,claiming that the prices of each biscuit pack,due to severe inflation,are $80.If Roxta continued to deliver at $50,it would lose $20 per biscuit pack it delivered.Seven Eleven Supermarkets sues Roxta,saying that it has to oblige by the contract signed.Evaluate the case.