You should always give the client enough information in a table that they can independently evaluate the statement you make in your text. Thus, if you are comparing market segments, on a series of 20 rating scales, your text might have a summary discussion of important differences. A corallary of the above is that you need to provide clear instructions in your report about how the table is to be interpreted. Tell the client how to interpret an effect size measure, and how to interpret post-hoc tests. Be sure they will be able to use the information you are providing.
Attractive figures are also important.
Figures can be substituted for detailed tables of means in many cases. Percentages are given below for relative allocation of grade by topic area. Describe any secondary or qualitative exploratory research used to define this statement. Provide a brief description of the background of the study. You may prefer to present much of the discussion in a table.