The Bon Appetit Bakery Company contracted with Samantha Mills to host a 15-episode TV cooking show sponsored by Bon Appetit. The contract provided that Mills would receive $200,000 per episode. Filming would take place at the WFUN studios in Boston. Before filming began, Mills demanded that Bon Appetit increase her salary to $250,000 per episode. Bon Appetit agreed. Bon Appetit paid Mills $250,000 for the first 14 episodes but only $200,000 for the 15th. Was the contract successfully modified, thus entitling Mills to an additional $50,000 for the last episode? Why or Why not? EXPLAIN