Needle Is a Private Laboratory That Performs More Than 100

question 42

Multiple Choice

Needle is a private laboratory that performs more than 100 different tests and analyses. Four tests require the use of a radiological counting machine that can supply 6,000 hours per year. Information on the four lab tests are as follows:
$\begin{array}{lrrrr} & \text { Test A } & \text { Test B } & \text { Test C } & \text { Test D } \\\text { Charging rate } & \$ 50 & \$ 20 & \$ 80 & \$ 70 \\\text { Variable cost } & 10 & 10 & 60 & 30 \\\text { Machine hours } & 2 & 1 & 0.5 & 0.25\end{array}$
-Refer to the Figure.What is the contribution margin per hour of machine time for Test B?

• A)$10
• B)$20
• C)$40
• D)$100

---

Definitions:

Estimated Cost

An approximation of the cost for goods or services based on available information, used for budgeting and planning purposes.

Lower of Cost or Market

An accounting principle that requires inventory to be reported at the lower value between its original cost and current market price.

Retail Inventory Method

A technique used by retailers to value inventory based on the retail price of goods, adjusted for sales and inventory changes.

FIFO Method

"First In, First Out" is an inventory valuation method where goods are sold or used in the order in which they are acquired.