A review of the ledger of Sheffield Company at December 31, 2020, produces the following data pertaining to the preparation of annual adjusting entries. 1. 2. Salaries and Wages Payable $0. There are eight employees. Salaries and wages are paid every Friday for the current week. Five employees receive $710 each per week, and three employees earn $410 each per week. December 31 is a Tuesday. Employees do not work weekends. All employees worked the last 2 days of December. Unearned Rent Revenue $406,530. The company began subleasing office space in its new building on November 1. Each tenant is required to make a $5,270 security deposit that is not refundable until occupancy is terminated. At December 31, the company had the following rental contracts that are paid in full for the entire term of the lease. Date Term (in months) Monthly Rent Number of Leases Nov. 1 $6,730 5 Dec. 1 3. $6,550 Prepaid Advertising $6,000. This balance consists of payments on two advertising contracts. The contracts provide for monthly advertising in two trade magazines. The terms of the contracts are as shown below. A650 Contract Date May 1 Amount Number of Magazine Issues $2,400 12