Are you planning to write these sorts of reports as part of a class/course? Or especially for us?
For now, a few of my thoughts:
Writing business reports is not completely different from essay writing. Lots of the same sorts of writing elements are still important. But if you have to write a report about a balance sheet or a P+L statement, then I’d say your first priority is to make sure you thoroughly analyze and understand the numbers before you even think about writing anything. You have to decide which bits of information can be omitted and which are significant. Determine in advance what should be compared and contrasted and why. The ideas and information need to be organized first.
You also need to know what the aim of the report is. Is it simply to report the results? Or are you expected to summarize and then make recommendations, for example? Do you have to compare this year’s numbers with last year’s? Also important is who the intended reader is.
One of the most typical mistakes that people make when writing reports (or giving presentations) about facts and figures is that they simply repeat what everyone can already read on the balance sheet (or P+L statement, or whatever). In other words, the numbers are simply spit back out verbatim — in excrutiating, often nearly meaningless detail.
Another typical mistake is repeated use of a very limited number of nouns and verbs; adjectives and adverbs are also frequently ignored. Your job is to summarize, describe, compare, contrast, draw conclusions and possibly make predictions, etc. It’s also nice to make your report at least half-way interesting. Using the correct terminology is important, but the report should not be so filled with specialist “jargon” that only a handful of specialists would be able to understand it. You have to paint a verbal picture out of crunched numbers. That’s no small feat.
Now, it’s your turn. What kind of information do you already have? Do you already know a lot of the basic terminology? Why don’t you post some of what you’ve already collected here (as Torsten suggested)?