Question

The unadjusted trial balance of Avery Air Purification System at December 31, 2018, and the data needed for the adjustments follow. Account Title Prepaid Rent Cash Debit Credit Accounts Receivable Office Supplies Equipment Accumulated Depreciation—Equipment Accounts Payable Salaries Payable Unearned Revenue Common Stock Dividends Service Revenue Salaries Expense Rent Expense Depreciation Expense—Equipment Advertising Expense Supplies Expense Total Balance \( 7,100 \) 65,200 \( 65,200 20,000 39,300 2,700 15,900 19,100 2,400 1,400 \) 3,800 3,500 9,400 3,900 1,900 Adjustment data at December 31 follow: a. On December 15, Avery contracted to perform services for a client receiving \(2,700 in advance. Avery recorded this receipt of cash as Unearned Revenue. As of December 31, Avery has completed \)2,100 of the services. b. Avery prepaid two months of rent on December 1. (Assume the Prepaid Rent balance as shown on the unadjusted trial balance represents the two months of rent prepaid on December 1.) c. Avery used \(750 of office supplies during the month. d. Depreciation for the equipment is \)800. e. Avery received a bill for December’s online advertising, \(500. Avery will not pay the bill until January. (Use Accounts Payable.) f. Avery pays its employees weekly on Monday for the previous week’s wages. Its employees earn \)2,000 for a five-day workweek. December 31 falls on Wednesday this year. g. On October 1, Avery agreed to provide a four-month air system check (beginning October 1) for a customer for $2,800. Avery has completed the system check every month, but payment has not yet been received and no entries have been made. Requirements 1. Journalize the adjusting entries on December 31. 2. Using the unadjusted trial balance, open the T-accounts with the unadjusted balances. Post the adjusting entries to the T-accounts. 3. Prepare the adjusted trial balance. 4. How will Avery Air Purification System use the adjusted trial balance?

Short answer

Adjusting entries are as follows:

	Journal entry
Transactions	Accounts and Explanation	Debit	Credit
(a)	Unearned Revenue	$2,100
	Service Revenue		$2,100
	To record service revenue earned that was collected in advance
(b)	Rent Expense	$1,200
	Prepaid Rent		$1,200
	To record rent expense
(c)	Supplies Expense	$750
	Office Supplies		$750
	To record office supplies used
(d)	Depreciation Expense—Equipment	$800
	Accumulated Depreciation—Equipment		$800
	To record depreciation on equipment
(e)	AdvertisingExpense	$500
	Accounts Payable		$500
	To record accrued advertising expense
(f)	Salaries Expense	$1,200
	Salaries Payable		$1,200
	To record accrued salaries expense
(g)	Accounts Receivable	$2,800
	Service Revenue		$2,800
	To record earned service revenue

Step-by-step solution

Calculation of Salaries Expense

Salaries expense is calculated as follows:

$\begin{array}{c}\mathbf{SalariesExpense}\mathbf{=}\mathbf{SalariesPerWeeklyPayroll}\mathbf{\times }\frac{\mathbf{NumberofDaysExpired}}{\mathbf{NumberofDaysPerPayrollWeek}}\\ \mathbf{=}\mathbf{\$}\mathbf{2}\mathbf{,}\mathbf{000}\mathbf{\times }\frac{\mathbf{3}}{\mathbf{5}}\\ \mathbf{=}\mathbf{\$}\mathbf{1}\mathbf{,}\mathbf{200}\end{array}$

Calculation of Rent Expense

Rent expense is calculated as follows:

$\begin{array}{c}\mathbf{RentExpense}\mathbf{=}\mathbf{PrepaidRent}\mathbf{\times }\frac{\mathbf{NumberofMonthsExpired}}{\mathbf{TotalMonthsofInsurancePaid}}\\ \mathbf{=}\mathbf{\$}\mathbf{2}\mathbf{,}\mathbf{400}\mathbf{\times }\frac{\mathbf{1}}{\mathbf{2}}\\ \mathbf{=}\mathbf{\$}\mathbf{1}\mathbf{,}\mathbf{200}\end{array}$

Calculation of Service Revenue Earned

Service revenue earned is calculated as follows:

$\begin{array}{c}\mathbf{ServiceRevenue}\mathbf{=}\mathbf{TotalAmount}\mathbf{\times }\frac{\mathbf{NumberofMonthsExpired}}{\mathbf{TotalMonthsofService}}\\ \mathbf{=}\mathbf{\$}\mathbf{2}\mathbf{,}\mathbf{800}\mathbf{\times }\frac{\mathbf{3}}{\mathbf{4}}\\ \mathbf{=}\mathbf{\$}\mathbf{2}\mathbf{,}\mathbf{100}\end{array}$