A contractor contracts to move 30,000 cy of soil from one place to another for $240,000. The contract to do so is severable. Contractor secured a performance bond for $50,000 in order to get the job. The project went well at first, with the contractor moving 20,000 cy of soil on schedule and was paid $160,000 by the client. Equipment failed, and the contractor went bankrupt. What is the maximum the surety would be expected to pay to owner to compensate for the contractor's failure to perform