Comprehensive GL Problem $3($Static$)($Events from Chapter $5)$

The account balances of Pacilio Security Services, Incorporated as of January $1,$ Year $5,$ are shown here:

During Year $5,$ Pacilio Security Services experienced the following transactions:

Paid the salaries payable from Year $4.$

On January $15,$ purchased $20$ standard alarm systems for cash at a cost of $$250$ each.

On February $1,$ paid the accounts payable of $$980,$ but not within the discount period. $($The company uses the gross method.$)$

On March $1,$ leased a business van. Paid $$4,800$ for one year's lease in advance.

$5.$ Paid $$7,200$ on May $1$ for one year's rent on the office in advance.

Purchased with cash $$500$ of supplies to be used over the next several months by the business.

Purchased with cash another $25$ alarm systems on August $1$ for resale at a cost of $$260$ each.

On September $5,$ purchased on account $30$ standard alarm systems at a cost of $$265$ each.

Installed $60$ standard alarm systems for $$33,000.$ Sales of $$22,000$ were on account, while $$11,000$ were cash sales. $($Note: Be sure

to record cost of goods sold using the perpetual FIFO method.$)$

Record the cost of goods sold related to the sale from Event $9$ using the perpetual FIFO method.

Made a full refund to a dissatisfied customer who returned her alarm system. The sale had been a cash sale for $$550$ with a cost of

$$260.$ Record the reversal of revenue in Event $11$ and the reversal of cost separately in Event $12.$

Record the reversal of cost of goods sold for the refund issued in Event $11.$

Paid installers and other employees a total of $$21,000$ cash for salaries.

Sold $$45,000$ of monitoring services during the year. The services are billed to the customers each month.

Sold an additional monitoring service for $$1,200$ for one year's service. The customer paid the full amount of $$1,200$ on October $1.$

Collected $$74,000$ of accounts receivable during the year.

Paid an additional $$6,000$ to settle some of the accounts payable.

Paid $$3,500$ of advertising expense during the year.