Given the following data and assuming a periodic inventory system, what is the ending inventory using the average cost method?

Purchases Sales

$40$ units at $$60/$unit $25$ units at $$65/$unit

$50$ units at $$55/$unit $30$ units at $$60/$unit

$60$ units at $$45/$unit $40$ units at $$50/$unit

$$2,878.$

$$2,933.$

$$3,141.$