Final answer:
To calculate the incremental profit of producing one headlight, we subtract the cost of producing one headlight from the cost of purchasing one headlight. In this case, the incremental profit would be $1.60.
Step-by-step explanation:
To calculate the incremental profit of producing one headlight, we need to consider the variable cost and the fixed cost associated with manufacturing the headlights. The variable cost includes direct labor and direct materials, which are calculated to be $3 and $4 respectively. The plant overhead rate is 200% of direct labor, meaning the overhead cost is $6. Considering that 40% of the overhead cost is fixed, the fixed cost is $2.40. Therefore, the total cost to produce one headlight is $9.40.
On the other hand, if Electric Scooter continues to purchase headlights from the outside company, the cost per headlight is $11.
To calculate the incremental profit, we subtract the cost of producing one headlight from the cost of purchasing one headlight. In this case, the incremental profit would be $11 - $9.40 = $1.60.