A company that manufactures brushless dc motors recently added a new product line of thin beam load cells. Start-up costs over the first 6 months were constant at $48,000 per month. Due to increased manufacturing efficiency, starting in month 7, costs were $46,000 and continued to decrease by $2000 per month through the end of the year. Using an interest rate of 18% per year compounded monthly, calculate the equivalent monthly cost for the first year. Solve using

(a) tabulated factors, and

(b) as spreadsheet.