Buckeye Company has provided the following data for maintenance cost: Prior Year 14,000 Current Year 17,200 Machine hours Maintenance $30,100 $33,940 cost The best estimate of the cost formula for maintenance would be: (Do not round intermediate calculations. Round your Variable cost per unit to 2 decimal places.) Multiple Choice $30,100 per year plus $1.20 per machine hour $20,640 per year plus $.833 per machine hour $13,300 per year plus $1.20 per machine hour $13,300 per year plus $.833 per machine hour