McGilla Golf has decided to sell a new line of golf clubs. The clubs will sell for $$843$ per set and have a variable cost of $$384$ per set. The company has spent $$166,713$ for a marketing study that determined the company will sell $5,485$ sets per year for seven years. The marketing study also determined that the company will lose sales of $923$ sets of its high$-$priced clubs. The high$-$priced clubs sell at $$1,050$ and have variable costs of $$702.$ The company will also increase sales of its cheap clubs by $1,126$ sets. The cheap clubs sell for $$450$ and have variable costs of $$200$ per set. The fixed costs each year will be $$944,812.$ The company has also spent $$109,699$ on research and development for the new clubs. The plant and equipment required will cost $$2,891,811$ and will be depreciated on a straight$-$line basis. The new clubs will also require an increase in net working capital of $$130,089$ that will be returned at the end of the project. The tax rate is $32$ percent, and the cost of capital is $7$ percent. What is the sensitivity of the NPV to changes in the price of the new clubs?