Answer:
the least profitable is $39.66 per unit or 9.72 per minute
Explanation:
The computation is shown below:
The Price Per Unit for WX is
= $355.20 - $259.22
= $95.98
Price Per Unit for KD is
= $228.48 - $173.04
= $55.44
And, the Price Per Unit for FS is
= $199.23 - $159.57
= $39.66
Now
Price per Minute for WX is
= $95.98 ÷ 7.70
= 12.46
Price Per Minute for KD is
= $55.44 ÷ 4.50
= 12.32
And, Price Per Minute for FS is
= $55.44 ÷ 5.70
= 9.72
So here the least profitable is $39.66 per unit or 9.72 per minute
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