can you solve this by excel and by interpolation please! 2.50 The energy costs of a company involved in powder coating of outdoor furniture are expected to in- crease at a rate of $400 per year. The cost at the end of the next year (year 1) is expected to be $13,000. How many years will it be from now be- fore the equivalent annual cost is $16,000 per year. if interest is 8% per year?
