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

Beginning inventory

$10$ units at $$48$

First purchase

$16$ units at $$50$

Second purchase

$28$ units at $$26$

Third purchase

$13$ units at $$63$

The firm uses the periodic inventory system, and there are $25$ 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.

$$ a$.$ $$1,055$

b$.$ $$1,131$

c$.$ $$1,230$

$$ d$.$ $$1,200$