I need accurate and correct answer $,$PLEASE

The primary difference between a periodic and perpetual inventory system is$?$

ABC Store sells widgets and uses the perpetual inventory system. Here are the transactions for the month of January:

January $1$: Beginning inventory of $50$ widgets at $$10$ each

January $5$: Purchased $100$ widgets at $$12$ each

January $10$: Sold $120$ widgets

January $15$: Purchased $80$ widgets at $$15$ each

January $20$: Sold $85$ widgets

Fifo ending inventory

Lifo ending inventory

March $1$: Beginning inventory consisted of $500$ cans of tomatoes at a cost of $$1\mathrm{.}50$ per can.

March $5$: Purchased $300$ cans of beans at a cost of $$1\mathrm{.}80$ per can.

March $20$: Purchased $400$ cans of corn at a cost of $$2\mathrm{.}00$ per can.

March $28$: Purchased $200$ cans of tomatoes at a cost of $$1\mathrm{.}60$ per can.

Ending Inventory $300$ units.

Fifo ending inventory

Lifo ending inventory