Buyers contracted to purchase a house being constructed by the Contractor. The contract contained this clause: "Contractor shall pay to the owners or deduct from the total contract price $100.00 per day as liquidated damages for each day after said date that the construction is not completed and accepted by the Owners and Owners shall not arbitrarily withhold acceptance." Testimony established the rental value of the home at $400-$415 per month. Is the clause enforceable?