The following lots of Commodity Z were available for sale during the year.

Line Item Description Units and Cost

Beginning inventory $10$ units at $$52$

First purchase $18$ units at $$50$

Second purchase $21$ units at $$21$

Third purchase $19$ units at $$57$

The firm uses the periodic inventory system, and there are $24$ units of the commodity on hand at the end of the year.

What is the ending inventory balance of Commodity Z using the weighted average cost method? Do not round intermediate calculations. Round your answer to the nearest whole dollar.

a$.$ $$1,220$

b$.$ $$1,188$

c$.$ $$1,039$

d$.$ $$1,248$