Stupid Question

I am sorry to post such a dumb question, but I can’t figure out the annualized returns on problem 12 B of Reading 31 in the CFA Curriculum (Alternative Investments reading, Volume 5). Would someone be willing to show me the math behind the 0.6133% number in the solution?

I am embarrassed to even ask this, but any assistance would be appreciated. Thanks in advance.

Never mind. . . sorry to bug you all on this. If anyone else was trying to figure this out, Exhibit 30 on page 90 of same book should bring it all together. Thanks.