At the beginning of last year (2021), Richter Condos installed a mechanized elevator for its tenants. The owner of the company, Robert Richter, recently returned from an industry equipment exhibition where he watched a computerized elevator demonstrated. He was impressed with the elevator's speed, comfort of ride, and cost efficiency. Upon returning from the exhibition, he asked his purchasing agent to collect price and operating cost data on the new elevator. In addition, he asked the company's accountant to provide him with cost data on the company's elevator. This information is presented below. Old Elevator New Elevator Purchase price. $103,500 $159,000 Estimated salvage value 0 0 Estimated useful life 5 years 4 years Straight-line Straight-line Depreciation method Annual operating costs other than depreciation Variable Fixed $34,000 $11.000 23,900 8,200 Annual revenues are $241,000, and selling and administrative expenses are $30.000, regardless of which elevator is used. If the old elevator is replaced now, at the beginning of 2022. Richter Condos will be able to sell it for $25,900