The average cost function for the weekly manufacture of retro portable CD players is given by C(X) - 160,000x + + 10 + 0.0004x dollars per player, where x is the number of CD players manufactured that week. Weekly production is currently 3,000 players and is increasing at a rate of 200 players per week. What is happening to the average cost? HINT (See Example 3.) (Round your answer to the nearest cent.) The average cost is decreasing at a rate of $ per player per week