Base it on actuals
Last year's numbers, adjusted for known changes, never an invented guess.
Volume 07, Chapter 10
Budgeting and Forecasting
A budget without a comparison to actuals is just a wish. The value isn't in writing the plan, it's in catching, early, exactly where reality diverged from it.
The Golden Rule
A budget answers "what did we plan?" A forecast answers "what do we now expect?"
Comparing the two, budget vs actual, turns vague feelings about the business into specific, checkable facts.
BudgetA plan, set annually or quarterly, held as a target.
Cash flow forecastRolling, updated weekly, tracking real transactions.
A gap is a signalA gap between the plan and reality isn't automatically bad, but it's always worth investigating.
Don't accept vague explanations
"Fabric got more expensive" is a start, not an answer.
Two different timescales
An annual budget and a weekly cash forecast answer different questions.
Investigate every large gap
The comparison is where the real value is, not the plan on its own.
1
Definition
Imagine a review at the end of a quarter shows the business spent about 8% more on fabric and materials than it had planned to. "Fabric got more expensive" is the first explanation offered, and it sounds reasonable enough to accept. But it isn't really an answer. Checking the suppliers one by one reveals that only one of them had raised prices, while the other two hadn't changed at all. That difference is what turns a vague worry into a real, fixable problem.
A budget is a plan for what you intend to earn and spend over a period. A forecast is your best current estimate of what will actually happen, updated as real information arrives. A budget is written once and held as a target; a forecast is revised continuously as reality unfolds.
In One Sentence
A budget answers "what did we plan?" A forecast answers "what do we now expect?" Comparing the two, the plan against what actually happened, is one of the most useful habits in this entire volume: it turns vague feelings ("business feels slow") into specific, checkable facts ("we spent 12% more on fabric this quarter than we planned to").
2
Building a Simple Budget
A budget is simply your best estimate of what will happen, written down before it happens. Say MANIAC MINDZ expects to make about ₦4,000,000 in sales next month. A simple budget for that month looks like this.
| Line | This Month's Budget |
|---|---|
| Revenue (expected sales) | ₦4,000,000 |
| − Cost of Goods Sold | −₦2,400,000 |
| = Budgeted Gross Profit | ₦1,600,000 |
| − Operating Expenses | −₦1,000,000 |
| = Budgeted Net Profit | ₦600,000 |
Where do these numbers come from? Don't invent them. Start with what actually happened last year, or last month, and then change only the lines you already know will be different this time.
Good reasons to change a number include:
- You're hiring another tailor next month, so wages will go up.
- The landlord has increased the rent.
- You're planning a marketing campaign, so that is a new expense.
- Fabric prices have gone up, so Cost of Goods Sold will be higher.
Each of those is a real, known change, so it is a fair reason to adjust a number. Simply saying "I think we'll sell ₦10,000,000 next month" is not budgeting. It is guessing.
The Point
A budget is a prediction. The prediction should be based on what really happened before, and you should only change a number when you already know a real reason it will be different. Hope is not a budgeting method.
3
Budget vs Actual: The Habit That Catches Problems Early
Writing the budget is only half the job. The other half comes at the end of the month or quarter: you put your plan next to what actually happened, line by line, and look at the gap between the two. That gap is where every useful lesson hides.
| Line | Budget (planned) | Actual (what happened) | Difference | Investigate? |
|---|---|---|---|---|
| Revenue (sales) | ₦4,000,000 | ₦3,700,000 | −₦300,000 (7.5% less) | Why? Fewer orders, or lower prices? |
| Cost of materials | ₦2,400,000 | ₦2,600,000 | +₦200,000 (8% more) | Fabric price rise, or waste? |
| Operating Expenses | ₦1,000,000 | ₦1,000,000 | ₦0 | On track |
| Net Profit | ₦600,000 | ₦100,000 | −₦500,000 | Needs a real explanation, not a shrug |
A large difference isn't automatically bad. It's a signal to investigate, the same habit as Chapter 5's cost-vs-expense diagnosis.
Memory Trick
A budget without a comparison to actuals is just a wish. The value isn't in writing the plan, it's in catching, early, exactly where reality diverged from it.
4
Cash Flow Forecasting: The Rolling, Forward-Looking Version
While a budget is usually set once per year or quarter, a cash flow forecast (introduced in Chapter 4) should roll forward continuously, updated weekly, looking 4-13 weeks ahead, tracking actual expected cash movements rather than budgeted profit. Full worked template: Cash Flow Forecast Worksheet.
Budget
Usually annual or quarterly, based on planned targets, answers "are we performing as planned?", reviewed monthly or quarterly.
Cash Flow Forecast
Rolling, updated weekly, based on real known transactions, answers "will we have enough cash on this date?"
| Budget | Cash Flow Forecast | |
|---|---|---|
| Time horizon | Usually annual or quarterly | Rolling, updated weekly |
| Based on | Planned targets | Real, known upcoming transactions |
| Answers | "Are we performing as planned?" | "Will we have enough cash on [specific date]?" |
| Reviewed | Monthly/quarterly | Weekly |
5
Example Story: The Difference That Led to an Answer
Here's the full version of the story from the start of this chapter.
At the end of the quarter, the accountant at MANIAC MINDZ put the budget next to what had actually happened, line by line. One number stood out. The business had planned to spend ₦2,400,000 on fabric and other materials, but it had actually spent about 8% more than that.
The easy explanation was "fabric just got more expensive." But the accountant asked a sharper question instead: which supplier had raised their prices? Every supplier was checked, one by one. The answer was surprising. Only one supplier had raised prices by much. The other two were charging almost exactly what they had before.
So the business negotiated a better price with that one supplier, and moved some of its orders to the cheaper two. By the next quarter, material costs were back to within 2% of the plan.
Notice what actually happened here. The budget was not "wrong." The budget is the thing that let the business notice something had changed, and then find exactly where the extra money was going. That is the whole reason to compare what you planned with what really happened: the difference points you straight to what to check and fix.
That difference between the plan and reality has a name. Accountants call it a variance. But the word matters far less than the habit behind it: compare the plan to reality, and follow up any gap until you understand it.
6
Across Industries
Golden Crust Bakery
What it revealedWaste (unsold bread) running consistently above budget on Mondays specifically
Rapid Auto Works
What it revealedLabour hours per job creeping above budgeted time, tracing to one specific repair type
Bright Path Academy
What it revealedEnrolment below budget in one specific grade level, prompting a targeted outreach
| Business | What Budget vs Actual Revealed |
|---|---|
| Golden Crust Bakery | Waste (unsold bread) running consistently above budget on Mondays specifically |
| Rapid Auto Works | Labour hours per job creeping above budgeted time, tracing to one specific repair type |
| Bright Path Academy | Enrolment below budget in one specific grade level, prompting a targeted outreach |
7
Common Mistakes
Common Mistake #1: Setting a Budget and Never Comparing It to Actuals
All the planning value is in the comparison, not the plan alone.
Common Mistake #2: Accepting Vague Explanations for Variance
"Fabric got more expensive" is a start, not an answer, see the example story's supplier-by-supplier breakdown.
Common Mistake #3: Confusing the Annual Budget With a Weekly Cash Forecast
They answer different questions on different timescales, see Section 4's comparison.
8
Quiz Yourself
Quiz 1
What's the difference between a budget and a forecast?
A budget is a plan set for a period and held as a target; a forecast is a continuously updated best estimate of what will actually happen.
Quiz 2
Why is a large budget variance not automatically bad news?
Because it's a signal to investigate, the underlying cause might be fixable (or even a positive surprise), but it needs a specific explanation, not a shrug.
Quiz 3
How often should a cash flow forecast be updated, compared to an annual budget?
Weekly, looking several weeks ahead, much more frequently than an annual or quarterly budget review.
9
Practice Exercise
- Build a simple monthly budget using Section 2's structure.
- At month end, fill in actuals and calculate variances per line.
- For your largest variance, dig one level deeper, like the supplier-by-supplier breakdown in the example story, before accepting an explanation.
- Start (or continue) a rolling weekly cash flow forecast using the Cash Flow Forecast Worksheet.
10
Quick Summary
Quick Summary
- A budget is a plan; a forecast is a continuously updated estimate of reality.
- Budget vs actual comparison turns vague feelings about performance into specific, investigable facts.
- A cash flow forecast is a different, faster-cycle tool than an annual budget, rolling weekly, tracking real cash rather than planned profit.
- Large variances are signals to dig deeper, never to shrug off with a vague explanation.
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