Write a report to the trustees of an endowment fund. The report is expected to: a) Explain the difficulties in comparing the performance of different portfolios. b) Describe four of the measures that are used to compare performances and when their use is appropriate. Write a report to the trustees of an endowment fund. The report is expected to: a) Explain the difficulties in comparing the performance of different portfolios. b) Describe four of the measures that are used to compare performances and when their use is appropriate