Paused One product line of Anitas Accessories (AA) is the assembly, testing, and marketing of a USB thumb drive The Speedster. The parts list for each unit is: 1 standard USB plug, 1 USB mass storage controller, 1 NAND flash memory chip, 1 crystal oscillator, and 1 cover. The current variable elements per Speedster are: Sales Price (per unit) $25.00 Material cost (per unit)... $6.00 Direct labor (per unit)... $4.00: Variable OH (per unit)... $7.00. The fixed costs associated with the manufacture and sales of this product are $480,000 per year and Anitas uses a marginal tax-rate of 20% for planning purposes. What is the contribution margin per unit of the Speedster?