Demco Products, a company that manufactures stainless steel control valves, has a fund for equipment replacement that contains $500,000. The company plans to spend $85,000 each year on new equipment. Use the NPER function to determine the exact number of years it will take to reduce the fund to no more than $85,000 at an interest rate of 12% per year. The exact number of years is 7th and 8th