A recently hired chief executive officer wants to reduce future production costs to improve the company's earnings, thereby increasing the value of the company's stock. The plan is to invest $80,000 now and $54,000 in each of the next 4 years to improve productivity. By how much must annual costs decrease in years 5 through 14 to recover the investment plus a return of 15% per year? The annual cost decrease, (in $) Round off to the nearest two (2) decimal places