How does a business plan and control its finances, and how is profit measured and analysed?
Finance and financial planning: cash-flow forecasting, budgeting and variance, the income statement, and profitability ratios (gross profit margin and net profit margin).
A focused answer to the WJEC A-Level Business Unit 2 finance content, covering cash-flow forecasting, budgeting and variances, the structure of the income statement, and profitability ratios such as gross and net profit margins, with worked calculations and business contexts.
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What this dot point is asking
WJEC Unit 2 covers how a firm plans and controls money: cash-flow forecasting, budgeting and variances, the income statement, and the profitability ratios. This is heavy on the quantitative skills, so you must compute and interpret. The single most important idea is the difference between cash and profit, because confusing them is the classic exam error.
The answer
Cash-flow forecasting
The forecast lets a firm see in advance when cash will be tight and act early - arranging an overdraft, delaying a payment or chasing customers. Because a profitable business can still fail if it runs out of cash to pay wages or suppliers, managing cash flow is vital, especially for new and growing firms.
Budgeting and variance
A budget is a financial plan: a target for revenue, costs or profit over a period. Comparing the actual outcome with the budgeted figure produces a variance:
- A favourable variance is better than budget (revenue higher, or costs lower than planned).
- An adverse variance is worse than budget (revenue lower, or costs higher).
Variance analysis helps managers control performance: it flags where the firm is off-plan so action can be taken, and it supports motivation and accountability if budgets are realistic.
The income statement
Profitability ratios
Two ratios from the income statement measure profitability:
- Gross profit margin = (gross profit / revenue) x 100. It shows the percentage of sales left after the direct cost of sales; a higher margin means each sale is more profitable before overheads.
- Net profit margin = (net profit / revenue) x 100. It shows the percentage of sales left after all expenses; it reflects overall efficiency, including overheads.
Comparing margins over time or against competitors shows whether profitability is improving and where costs are eroding it (a falling net margin with a steady gross margin points to rising overheads).
Examples in context
Example 1. A profitable firm with a cash-flow gap. A growing Welsh manufacturer wins a large order but must buy materials and pay wages now, while the customer pays 60 days later. On paper the order is profitable, but the cash-flow forecast shows a shortfall in the intervening months. Because the firm forecast this, it arranges a short-term overdraft in advance and avoids running out of cash. The example shows why cash flow, not just profit, decides whether a firm survives.
Example 2. Using variances to control costs. A café chain budgets monthly staff costs and finds an adverse variance: actual wages are well above budget because of overtime. Spotting the variance early, the manager adjusts rotas and the overspend stops. The example illustrates budgeting and variance analysis as a control tool that turns a financial plan into action.
Try this
Q1. Define the term cash-flow forecast. [2 marks]
- Cue. A prediction of the cash flowing into and out of a business over a future period, showing opening balance, inflows, outflows, net cash flow and closing balance.
Q2. A firm has revenue of £300,000 and net profit of £45,000. Calculate its net profit margin. [2 marks]
- Cue. Net profit margin = (45,000 / 300,000) x 100 = 15%.
Exam-style practice questions
Practice questions written in the style of WJEC exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
WJEC 20186 marksA business has revenue of £200,000, cost of sales of £120,000 and other expenses of £40,000. Calculate its gross profit margin and net profit margin.Show worked answer →
Gross profit = revenue - cost of sales = £200,000 - £120,000 = £80,000. Gross profit margin = (gross profit / revenue) x 100 = (80,000 / 200,000) x 100 = 40%.
Net profit = gross profit - other expenses = £80,000 - £40,000 = £40,000. Net profit margin = (net profit / revenue) x 100 = (40,000 / 200,000) x 100 = 20%.
Markers reward the correct method shown, both margins as percentages, and the right figures.
WJEC 20218 marksExplain the importance of cash-flow forecasting to a business.Show worked answer →
A cash-flow forecast predicts the timing of cash in and out, so the firm can spot a shortfall before it happens and arrange finance (an overdraft, delayed payments) in time, avoiding insolvency even when it is profitable.
It supports planning and control of spending, helps secure loans (banks require one), and lets the firm see whether large purchases are affordable in a given month.
A strong answer notes that cash flow is about timing, not profit - a profitable firm can still run out of cash - and that the forecast is only as good as its estimates. Markers reward developed reasoning and the cash-versus-profit distinction.
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Sources & how we know this
- WJEC GCE AS/A level Business specification — WJEC (2015)