The Clarkson Company's Cargo Division is currently operating at 100% of capacity (capacity is 100,000 units). Normal selling price is $20.00 per unit. At current operating levels, fixed costs are $6 per unit and variable costs are $9 per unit. Another division of Clarkson Company would like to buy from the Cargo Division. If this sale is made, $2 per unit in variable selling and administrative costs would be saved. What is the lowest transfer price the Cargo Division should accept?
a) $13.00
b) $18.00
c) $15.00
d) $7.00