he pension plan also invests in physical assets. It is considering the purchase of an office building today. The asking price for the lot is $12 million. What is the annual yield (internal rate of return) of the investment if the purchase price is $12,000,000 today and the sale price 8 years later is $20,000,000?

Answer should be a number given as a %. That is, for example 3.18% should be answered as 3.18 rather than 3.18% or 0.0318