Damages for breach of contract by one party consist of a sum ㉠equal to the loss, including loss of ㉡risk, suffered by the other party as a consequence of the breach. Such damages ㉢may not exceed the loss which the party in breach foresaw or ought to have foreseen at the time of the ㉣conclusion of the contract, in the light of the facts and matters of which he then knew or ought to have known, as ㉤an impossible consequence of the breach of contract.