FastTrack Bikes, Inc. is thinking of developing a new composite road bike. Development will take six years and the costs is $200,000 per year. Once in production, the bike is expected to make $300,000 per year for 10 years. The cash inflows begin at the end of year 7. Assuming the cost of capital is 14%, how much must this cost of capital estimate deviate to change the decision from not investing to investing? How long must development last to change the decision?