Management Accounting and Excel spreadsheets
Excel spreadsheets are the most common and indispensable tool used by
accountants, enabling them to analyse, report and share financial information.
Much of this can be accomplished using only a fraction of the wealth of functions and
options within the Excel program.
Basic arithmetic, the SUM() function and some cell border formatting will let
you produce useful models and perform some quite complex calculations. By
expanding your knowledge with just a few other functions, Excel can become a
much more versatile tool. Very occasionally Excel does not contain a function
that you may expect, and it is necessary to combine other functions to perform
tasks such as calculating weighted averages.
Accountants have a professional responsibility to present accurate data. The
IF() and TEXT() functions are essential for incorporating error checking
messages to demonstrate that the spreadsheet models have been reconciled and are
performing properly. A spreadsheet presentation gives reports a degree of
unearned credibility. This is frequently ill-deserved and research shows that a
high proportion of large models contain critical errors. Your spreadsheets must
be well designed and thoroughly checked. Keep in mind the importance of any
decisions which might be based upon your model.
If you wish to be selective with your data and only perform calculations on
items that meet certain criteria, both Database and
Array functions are useful,
but SUMPRODUCT() is the most versatile and wonderful alternative. It is able to
extract all sorts of values from a table of data and can be used as an
alternative to a great many functions.
Graphs are a great way to present information, but keep them simple. Don't
get carried away with 3D formats which can make it difficult to read important axis
values. If you update a chart on a regular basis, you are very likely to
occasionally forget
to manually alter any titles which contain period information. It is best to
link chart titles to cell contents which can be automatically updated.
A popular, modern Financial Management technique is that of balanced
scorecards which often incorporate traffic light indicators. Conditional
formatting for cell ranges is not only useful for highlighting exceptional or
incorrect values but can be used to automatically colour cells to show good or
bad performance.
In order to report on tables of data with separate columns or rows for each
accounting period, the OFFSET() function lets you select data for any single or cumulative
period.
There are numerous financial functions for performing interest and investment
calculations. These can greatly simplify the long formulae previously required
for things such as loan repayments - but always beware. The built in
functions may perform differently to your own (textbook) formulas. They may
invert the sign and show negative results where you expect positive; they may
use a base period of p0 where you assume it is p1. Once you have tested the
financial functions using a variety of situations and confirmed the results, they
make tasks such as calculating the Net Present Value much easier.
Finally, it is always helpful to make your models friendly to other users.
Protecting or restricting the values that can be placed in cells will prevent
unforeseen errors. Drop down boxes are a splendid way of getting values from
users and hyperlinks can guide them around your models. By incorporating dates
and filenames in default headers and footers, anyone can trace the source of
your masterpiece.