HAVO Bedrijfseconomie common mistakes
HAVO Bedrijfseconomie · Understand the traps and how to avoid them.
Calculating gross profit or added value without first explicitly separating purchase VAT (btw) from the purchase amount, so the cost of goods sold includes VAT.
Candidates see an invoice total and treat it as the expense, forgetting that a VAT-registered business reclaims input VAT and that only the net amount belongs in the profit calculation.
What to do instead
Before every calculation, write down the invoice amount and split it: net = total / (1 + VAT rate), VAT = total − net. Only carry the net amount into the cost or added-value calculation, and state explicitly that VAT is a balance-sheet item (te vorderen btw), not a cost.
Confusing the result (winst/verlies) with the cash flow or the change in cash balance, and presenting a positive result as proof that liquidity is fine.
The result is built on revenues and costs at the moment they arise, while cash moves when invoices are actually paid; depreciation, changes in debtors and creditors, and stock movements create the gap, and candidates skip that reconciliation.
What to do instead
Always make a separate cash-flow overview: start from the result, add depreciation, then correct for changes in working capital (stock, debtors, creditors) and for investments and financing. Answer result and liquidity questions in two distinct blocks and label each block.
Computing break-even turnover by dividing total fixed costs by the contribution margin per unit without checking whether the contribution margin was calculated per unit or as a percentage of the selling price.
Textbook formulas exist in both forms (CMP per unit and CMP as a percentage of turnover), and candidates grab whichever formula they remember without matching it to the data given.
What to do instead
Write the unit under the formula before substituting: if the margin is in euros per unit, divide fixed costs by that amount to get units; if it is a percentage of the selling price, divide fixed costs by that percentage to get turnover in euros. Convert one to the other explicitly when both are asked.
Applying the wrong VAT rate or treating a VAT amount as an addition to turnover, for example adding 21% to a selling price that is already stated including VAT.
Exercises mix amounts excluding VAT (for businesses) and including VAT (for consumers), and candidates do not check which side of the transaction the amount belongs to.
What to do instead
Mark every amount in the question as 'excl.' or 'incl.' before calculating. For consumer prices use total / 1.21 to get the net price; for business-to-business prices the stated price is normally already excluding VAT. Never add VAT to an amount that is already inclusive.
Calculating the payback period or net present value from the accounting profit instead of the cash flow, or forgetting to include the residual value and the investment itself in the NPV.
Investment appraisal uses cash flows, but the profit-and-loss figures in the case are more prominent, and depreciation is wrongly treated as an outgoing cash flow.
What to do instead
For investment questions, build a cash-flow row per year: revenue − operating costs − investment in that year, ignoring depreciation. For NPV, discount each year's cash flow, add the discounted residual value, then subtract the initial investment. For the payback period, count only cash inflows against the investment.
Mixing up the interest calculation on a loan: charging interest over the full original debt for every year instead of over the remaining balance, or using the nominal rate where the question asks for the effective interest rate.
Linear and annuity repayment schedules behave differently, and candidates reuse the first-year interest figure for later years or confuse nominal with effective interest.
What to do instead
Draw up the repayment schedule year by year: interest = rate × opening balance, then subtract the repayment to get the closing balance. Use the effective interest rate only when instalments and the net proceeds differ from the nominal loan, and show the formula you used.
Reporting a marketing or pricing question with only a qualitative answer ('lower the price to attract customers') without calculating the required sales volume or the effect on the contribution margin.
Marketing topics feel like essay questions, so candidates write prose and skip the numbers that the exam actually rewards, such as the extra units needed to compensate for a price cut.
What to do instead
Convert every marketing proposal into a calculation: compute the new contribution margin per unit, the extra volume needed to keep the same total contribution, and whether that volume is realistic given the market data. Put the calculation first and the conclusion in one sentence after it.
Calculating employer labour costs as gross wage only, omitting employer social security contributions, holiday allowance, pension contribution and other secondary labour costs.
The gross wage is the most visible number in the case, and candidates forget that the employer pays more than the employee receives.
What to do instead
Build a standard employer-cost template: gross wage + holiday allowance + employer social insurance + pension premium + other personnel costs = total labour cost per employee. Apply this template to every personnel question and state which components were given and which were not.
Reading a balance sheet or income statement and treating every entry as belonging to the same period, for example counting a long-term loan as current or placing a provision under equity.
Candidates classify by label rather than by definition and do not check the maturity date or the nature of the item, which distorts ratios such as current ratio and solvency.
What to do instead
Classify each balance-sheet item by definition: current assets and current liabilities are due within one year, provisions are obligations with uncertain timing or amount and belong between debt and equity, and equity consists of share capital, reserves and retained profit. Then compute ratios only from the classified figures.
Giving a final answer without units, without rounding to the required number of decimals, or without a check that the answer is plausible in the context of the case.
Candidates focus on the arithmetic and stop as soon as a number appears on the calculator, skipping the step of interpreting it against the case data.
What to do instead
End every calculation with a labelled answer line (euros, units, percentage, years), round as the question requires, and add one sentence checking plausibility against the case, for example comparing the calculated break-even volume with the stated production capacity.