Albert Has a Contract to Buy 100 Tables from Bartholomew

Albert has a contract to buy 100 tables from Bartholomew at a price of $50 a table. Five days before Bartholomew is to deliver the tables, he calls Albert to say that he is sorry but $50 won't cover his costs, and he will now need at least $75 a table. Albert agrees, because he needs the tables for his special sale. The modified contract is enforceable even though Albert isn't getting any new consideration, so long as Bartholomew is acting in good faith and the agreement to the new price is put in writing.