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Communicating ยท Lesson 5

How to Explain Numbers to Non-Finance People

Turning a set of accounts into something a client actually understands.

The thing it is best at

You have watched it happen. You take a client through their year end, carefully, patiently, and their eyes do the thing. They nod. They say "so is that good?" and you realise the last eleven minutes went nowhere.

The gap is not intelligence. Your client runs a business and understands it far better than you do. The gap is that you speak fluent accounts and they do not, and translation is a genuine skill that has nothing to do with the skill of preparing the accounts in the first place.

This is where AI is not merely adequate but excellent. Translation is its home ground. Give it verified figures and a description of who is reading, and it will produce a draft that is clearer than the one you would have written at half past six on a Thursday.

There is exactly one catch, and it is a serious one, so let us take it before the good news.

Every single figure in an AI-drafted narrative must be checked against your source before it goes anywhere. A fluent paragraph containing a wrong number is far more dangerous than an obviously broken one, because a broken number gets questioned and a beautifully written one gets believed, quoted, and put in front of a bank.

In plain English

Drift:
Figures shifting slightly as text is rewritten. Round a number once in a summary and it can arrive rounded again, differently, later.
Fluency bias:
Our tendency to trust well-written text more than badly written text, regardless of whether it is true.
Grounding:
Tying output to a source you supplied. Weak grounding is where invented detail creeps in.
Placeholder:
A marker like FIG1 standing in for a real figure, so you insert verified numbers yourself at the end.

The placeholder trick

The cleanest defence is not to let it handle the numbers at all. Ask for the narrative with placeholders, then paste in your own verified figures.

It feels laborious for about one draft, then it feels like the obvious way to work. And it gives you something valuable: an explicit list of every figure the narrative depends on, which is exactly the checklist you need anyway.

Prompt you can copy: narrative with placeholders

Write a short commentary on these results for a reader who runs the business but has no finance training.

Do not write any figures. Wherever a figure belongs, write a placeholder in this style: FIG1, FIG2, FIG3. At the end, list every placeholder with a plain English description of exactly which figure I need to insert and from which statement it comes.

Tone: plain, warm, direct, second person. No jargon. If you use a term like working capital, explain it in the same sentence. Length: about 250 words.

Here is what happened this period, in my own words: [describe the story, without figures]

Now you insert the numbers, reading each one off the statement as you go. You cannot skim past a figure you are physically typing.

โŒ Weak prompt

Prompt

Here are the management accounts. Write commentary for the client.

Output

A polished three-paragraph commentary. Revenue up 12 percent to 847,000. Gross margin improved to 41 percent. Cash position strengthened by 63,000.

Three figures, three risks, and it reads beautifully. The 12 percent might be 12 percent, or it might be the number that fitted the sentence. The client will quote this at their bank next week.

โœ… Good prompt

Prompt

Write commentary for the client using placeholders FIG1, FIG2 and so on instead of any figures. List at the end what each placeholder needs and which statement it comes from. Here is the story in my words: revenue grew, margin improved slightly, cash is better but a large receivable is overdue.

Output

The same polished commentary, with FIG1 through FIG6 in place, and a numbered list telling you exactly what to insert and where to find it.

You get the writing, which is what you wanted, and the numbers stay yours. The placeholder list doubles as your verification checklist.

Checkpoint

Ask for the words, insert the numbers. Read every figure off the source as you type it. A fluent sentence containing a wrong figure is the most dangerous output in this entire course.

Writing for a specific person

Generic commentary is useless commentary. The tool cannot know that your client is a builder who thinks in jobs and vans rather than in periods and accruals, or that the board member who asks the hardest questions used to be a treasurer. Tell it.

Prompt you can copy: pitch it at the actual reader

My reader is: [describe them honestly. What do they run? What do they already understand? What have they misunderstood before? What are they worried about?]

Rewrite the commentary for that person specifically. Rules:

  • Lead with what it means for them, not with what the statement shows.
  • Use comparisons from their world, not from finance.
  • Keep every figure exactly as I have written it. Do not round, restate, recalculate or convert anything into a percentage.
  • If you think a figure is wrong or inconsistent, say so at the end in a note to me. Do not change it in the text.

That fourth rule catches something real. Rewrites are where figures quietly drift, turning into rounded versions of themselves or reappearing as percentages the tool worked out for itself. Lock them down and check them again after every rewrite, not just after the first draft.

The difficult conversation

The other place this earns its keep is preparation. Not the email itself, but the twenty minutes before a hard call about cashflow, an overdue tax liability, or fees.

Prompt you can copy: rehearse a difficult conversation

I need to have a difficult conversation with a client about [describe the situation in general terms, no identifying detail].

Help me prepare. Give me:

  1. The three things they are most likely to be feeling before I speak.
  2. The five hardest questions they might ask me.
  3. For each question, what a defensive answer sounds like and what a straight answer sounds like.
  4. Two sentences I could open with that are honest and do not sound rehearsed.

Do not write me a script and do not include any figures. I will bring the figures myself.

Item three is worth the price of admission. Seeing your own defensive answer written down in advance is an oddly effective way of never saying it out loud.

Prepare with generalities, not with client detail. You do not need to name the client or paste their accounts to rehearse a conversation about pressure on cash, and once again: do not paste client data into a consumer AI tool. General terms give you everything useful here and cost you nothing.

Before you send

Four checks, roughly three minutes.

Read every figure against the source. Not the summary of the source, the source itself. Then check the direction of travel, because "improved" and "fell" are single words that flip a whole paragraph's meaning and are exactly the kind of thing that gets generated rather than derived. Then look for any figure you did not put there yourself, because if a number appeared during a rewrite, delete it or verify it. And finally check for confident claims about causes. "Margin improved because of the new pricing" is a claim about the business, not about the accounts, and unless you know that to be true, it is fiction with a decimal point attached.

None of this is professional, tax or legal advice, and it makes no claim about what your professional body, regulator or jurisdiction requires of communications you issue. Commentary you send carries your name and your liability. The words can be drafted. The verification cannot.

๐Ÿ“ Quiz

Question 1 of 4

Why is a fluent paragraph containing a wrong figure especially dangerous?

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