Steward Co$.$s beginning inventory and purchases during the year were as follows:

DATE UNIT UNITS COST TOTAL COST

January $1$ Inventory $1,000$ $$50\mathrm{.}00$ $$50,000$

March $10$ Purchase $3,00052\mathrm{.}00156,000$

June $25$ Sold $1,600$ units

August $30$ Purchase $2,60055\mathrm{.}00143,000$

October $5$ Sold $4,000$ units

November $26$ Purchase $1,00057\mathrm{.}6857,680$

December $31$ Sold $800$ units

Total $7,600406,680$