Juan should refer to the income statement and the balance sheet over the past 3-5 year period. In addition, he should prepare a cash flow statement, common size income statement and common size balance sheet. The accounting statements provide the raw data from which the other statements can be prepared. The cash flow statement helps determine where the cash came from and where it was spent during a year. The common size statements provide useful information regarding the relative trends of the various assets, liabilities, revenue sources, and expense items. They also help the analyst make meaningful comparisons between firms of varying sizes.