Excellent Inc. is considering leasing or disposing of the following equipment: Cost of equipment$300,000 Less accumulated depreciation(200,000) Book value$100,000 Lease option: Total revenue for five-year lease$200,000 Total estimated repair, insurance, and property tax expenses during life of lease50,000 Residual value at end of fifth year of lease0 Sell option: Sales price$150,000 Commission on sales7% Calculate the differential cost of the lease alternative.