At the beginning of last year $(2019),$ Richter Condos installed a mechanized elevator for its tenants. The owner of the company, Ron 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.

Annual revenues are $$241,000,$ and selling and administrative expenses are $$28,000,$ regardless of which elevator is used. If the old elevator is replaced now, at the beginning of $2020,$ Richter Condos will be

able to sell it for $$25,200.$

Prepare a $4-$year summarized income statement for each of the following assumptions.