Limitations of Financial Ratio Analysis

I am a big fan of ratio analysis for small businessthe same company can get tricky. I have seen
owners. I don't have to inspire large companymany small businesses with a high turnover of the
CFOs and Controllers to perform ratio analysis,bookkeeping/accounting position and my review
because it is their daily bread, but I find thatof the general ledger revealed often that there
many small business owners have not yet gainedwas no consistency in the way many transactions
an appreciation of what financial ratios can do forwere posted by those different people. This
them.would make comparisons less valuable than they
But as much as ratio analysis can help you, it cancould otherwise be. This brings us back to our
also mislead, so I thought it would be good tofirst point - accounting records need to be not
delve into the limitations of financial ratio analysisonly accurate but also consistent.
today.Ratio analysis reflects only what is in the financial
Ratio analysis can be only as good as thestatements
underlying dataObviously, financial ratios will reflect only what is
Ratios are absolutely wonderful. They boil down acontained in the financial reports of the company.
complex set of numbers and relationships to aAnd as valuable as that can be, it does not
simple, 1 or 2 digit number which tells youcapture many factors which can have a profound
volumes! But beware... What if those complex,impact on the business and yet cannot be
underlying data are not accurate? Many importantquantified or expressed in accounting terms.
decisions are made because a ratio has changedI remember acting as a part-time controller for an
by 1 or 2 percentage points. Given that, yourinsurance firm which has just been purchased by
accountant better make really sure that thean international player. The President was given a
calculations can be relied upon.certain ratio as a target for his accounting
In the small business environment things likedepartment salary costs. Based on this ratio, he
reconciled trial balance (yes, not only the bankcouldn't add a single person to his accounting staff.
accounts!) and monthly, reviewed financialOn the contrary, to meet the target, he would
statements cannot be taken for granted. Manyhave to let some people go first.
small businesses do not have adequate accountingBut that didn't take into consideration the
systems in place nor do they all have competentparticular situation this company was in. Due to
accounting personnel making sure the monthlyhistorical reasons, the staff had very low
financial results are not only available, but actuallyqualifications, systems were old and the only way
accurate.out was to bring a strong full-time controller or
Calculating any ratios based on questionable dataCFO to reorganize the department. The target
and an unreconciled set of books can be veryratio wouldn't allow for that. But it was the best
dangerous. So, before any analysis is eventhing to do in those circumstances. Intelligent
attempted, the accounting records must beleadership will recognize such limitations of ratios
brought up to par.and make the right business decisions anyway.
Ratio comparisons can be meaningful only, if dataOther factors not contained in the financial
is truly comparablestatements can be technological developments,
It's a challenge to achieve comparability amongcompetitor's actions, government actions, etc. All
different firms, even in the same industry.elements with potential impact on the business
Different depreciation methods, differentneed to be evaluated when making important
inventory valuation methods used, different policydecisions, not only financial ratios.
regarding capitalization of certain expendituresStill, financial ratio analysis is a key component of
make it very hard to arrive at financialthose decisions and I would venture to say that a
statements which can be compared meaningfully.company which doesn't avail itself of this
But even comparisons of different periods withininformation is at a disadvantage.