Bob wants to build a greenhouse and a garage on his land. He contracts Matt to build the greenhouse only as Matt does not specialize in building garages. They agree that Matt starts the job in 3 weeks.
A few days later Bob comes across John who is happy to build both the greenhouse and garage. Bob would prefer that both things are built by the same man, but he is now obliged to honor the contract with Matt, so he cannot give the greenhouse job to John unless Matt is happy to terminate the contract.
What kind of damages would be awarded to Matt by the court if Bob, instead of mutually terminating the contract, simply refuses to honor it and gets John to build the both things? Would that damage be comparable to the amount that Bob would have paid to Matt if the contract was honored, or much less?