McGilla Golf has decided to sell a new line of golf clubs. The clubs will sell for $816 per set and have a variable cost of $382 per set. The company has spent $102718 for a marketing study that determined the company will sell 5598 sets per year for seven years. The marketing study also determined that the company will lose sales of 950 sets of its high-priced clubs. The high-priced clubs sell at $1129 and have variable costs of $713. The company will also increase sales of its cheap clubs by 1107 sets. The cheap clubs sell for $452 and have variable costs of $203 per set. The fixed costs each year will be $868532. The company has also spent $117752 on research and development for the new clubs. The plant and equipment required will cost $2857581 and will be depreciated on a straight-line basis. The new clubs will also require an increase in net working capital of $131670 that will be returned at the end of the project. The tax rate is 33 percent, and the cost of capital is 10 percent. What is the sensitivity of the NPV to changes in the quantity of the new clubs sold? [Hint: Think of this as, "How much will NPV change if I sell one more set of new clubs each year?"] (Do not round intermediate calculations and round your final answer to the nearest dollar. Omit the "$" sign and commas in your response. For example, $12,345.6789 should be entered as 12346.)