Formula sheets, the key method steps for every topic and 10 practice problems, with full solutions at the back.
You invest €1 000 at 5% per year with continuous compounding. Find the value FV after 16 years.
You want €100 000 in 17 years. You save the same amount at the end of every month in an account paying 6% per year, compounded monthly. Find the monthly deposit A.
A project costs €200 000 today. It generates €13 000 at the end of the first year, and the cash flow then grows by 3% per year forever. The cost of capital is 8%. Find the net present value NPV.
A project costs €20 000 and returns €11 000, €8 500, €9 000 at the end of years 1 to 3. Find its internal rate of return IRR in percent.
A bond with a face value of €1 000 matures in 8 years and pays annual coupons. It sells for €1 095 when the yield to maturity is 5.5%. Find the coupon rate c in percent.
A bond trades at €1 100 with a yield to maturity of 7% (annual compounding) and a Macaulay duration of 4.1 years. Use the modified duration to estimate the new price P if the yield rises by 75 basis points.
A share with a beta of 0.6 has a required return of 5.5%. The risk-free rate is 2.5%. What expected market return rm does CAPM imply?
A company has 2 500 000 shares at €22.00 each and 10 000 bonds trading at €1 000 each. The pre-tax cost of debt is 4.5% and the tax rate is 25.8%. The share’s beta is 1.5, the risk-free rate 3.5% and the market return 9%. Find the WACC.
A company sells 1 280 units at €40 each. The variable cost is €30 per unit and fixed costs are €8 000. Find the degree of operating leverage DOL at this sales level.
A product sells for €8 per unit, with a variable cost of €6 per unit and fixed costs of €2 000 per year. Budgeted sales are 1 500 units. Find the margin of safety MS as a percentage of budgeted sales.
Answer: FV = 2226 €
Time value of money: money today is worth more than the same amount later, because it can earn interest. With interest rate i per period, an amount grows as FV = PV·(1 + i)n. A series of equal payments (an annuity) is valued by adding up each payment, which gives the annuity formulas.
Answer: A = 283.1 €
Time value of money: money today is worth more than the same amount later, because it can earn interest. With interest rate i per period, an amount grows as FV = PV·(1 + i)n. A series of equal payments (an annuity) is valued by adding up each payment, which gives the annuity formulas.
Answer: NPV = 60000 €
Net present value: discount every cash flow back to today with the required rate of return r, then add them up: NPV = Σ CFₜ/(1 + r)ᵗ. A project with NPV > 0 earns more than r and adds value. The internal rate of return (IRR) is the rate at which NPV = 0.
NPV is positive, so the project earns more than the required return.
Answer: IRR = 20.92 %
Net present value: discount every cash flow back to today with the required rate of return r, then add them up: NPV = Σ CFₜ/(1 + r)ᵗ. A project with NPV > 0 earns more than r and adds value. The internal rate of return (IRR) is the rate at which NPV = 0.
NPV falls as the rate rises, so the IRR lies between a rate with positive NPV and one with negative NPV.
Linear interpolation gives a first estimate; repeating it (or a calculator's IRR function) gives the exact rate.
Answer: c = 7 %
Bond pricing: a bond’s price is the present value of its cash flows, discounted at the yield to maturity (YTM): the coupons form an annuity and the face value is paid back at maturity. P = C·(1 − (1 + y)⁻ⁿ)/y + F/(1 + y)ⁿ. When the yield is above the coupon rate the bond trades below face value, and the other way round.
Answer: P = 1068 €
Duration: the Macaulay duration is the weighted average time at which a bond pays its cash flows, with the present values of the cash flows as weights: D = Σ t·PVₜ/P. The modified duration D/(1 + y) estimates the percentage price change for a small change in yield: %ΔP ≈ −Dmod·Δy.
Duration is a linear estimate; for large yield changes convexity makes the true price a little higher.
Answer: rm = 7.5 %
Cost of capital: CAPM gives the return shareholders require: re = rf + β·(rm − rf). The weighted average cost of capital mixes equity and debt by their market values: WACC = E/V·re + D/V·rd·(1 − T), with V = E + D. Interest is tax-deductible, hence the (1 − T).
Answer: WACC = 10.46 %
Cost of capital: CAPM gives the return shareholders require: re = rf + β·(rm − rf). The weighted average cost of capital mixes equity and debt by their market values: WACC = E/V·re + D/V·rd·(1 − T), with V = E + D. Interest is tax-deductible, hence the (1 − T).
Answer: DOL = 2.667
Operating leverage: fixed costs make profit react more strongly than sales. The degree of operating leverage DOL = contribution margin/operating profit tells you that a 1% change in sales changes profit by DOL %. It is very high just above break-even and falls as sales grow.
Answer: MS = 33.33 %
Cost-volume-profit: each unit sold earns a contribution margin, price minus variable cost per unit. Profit = Q·(p − v) − F, where F is the fixed cost. At the break-even point profit is zero, so Q = F/(p − v).
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