Purchase

Unit Cost per units Total Cost

May $1$ Beginning Inventory $500$ $$136500$

May $10$ Purchase $350$ $$14\mathrm{.}505075$

May $19$ Purchase $175$ $$17\mathrm{.}253018\mathrm{.}75$

May $24$ Purchase $120$ $$182160$

Total $114516753\mathrm{.}75$

Sales

Unit Selling Price

May $9$ Sold $325$ $$35$

May $17$ Sold $170$ $$42$

May $26$ Sold $290$ $$45$

Specific units sold

May $9325$ units from the May $1$ units on hand

May $17110$ units from the May $1$ unit on hand

May $1760$ units from the May $10$ purchase

May $26180$ units from the May$10$ purchase

May $26110$ units from the May $24$ purchase

Based on the above information calculate the ending inventory and the cost of good sold under periodic inventory system by applying the three different methods.