company purchased $400$ units for$$ $$30$ each on January $31.$ It purchased $200$ units for$$ $$40$ each on February $28.$ It sold a total of $260$ units for$$ $$90$ each from March $1$ through December $31.$ If the company uses the lastminus$$in$,$ firstminusout inventory costing$$ method, calculate the cost of ending inventory on December $31.($Assume that the company uses a perpetual inventory$$ system.$)$

Question content area bottom

Part $1$

A$.$

$$$$340$

B$.$

$$$$20,400$

C$.$

$$$$13,600$

D$.$

$$$$10,200$