The inventory records for Radford Company reflected the following

Beginning inventory on May $1$ First purchase on May $7$ Second purchase on May $17$ Third purchase on May $23$ Sale on May $31$

$600$ units @ $$2\mathrm{.}80$

$700$ units @ $$3\mathrm{.}00$

$900$ units @ $$3\mathrm{.}10$

$500$ units @ $$3\mathrm{.}20$

$2,200$ units @ $$4\mathrm{.}70$

What is the amount of ending inventory assuming the FIFO cost flow method is used

Multiple Choice

$$1,910$

$$1,620$

$$1,680$

$$1,600$