Answer:
Unit A - $665
Unit B - $495
Step-by-step explanation:
According to the accounting principles, the inventory is valued at cost or market value whichever is lower.
So, in the given case
The inventory cost of unit A should be recorded at $665 cost value because it is a lower value than the market value i.e. $680
And, The inventory cost of unit B should be recorded at $495 market value because it is a lower value than the historical cost i.e. $580