Corporate Finance: cram pack

Formula sheets, the key method steps for every topic and 10 practice problems, with full solutions at the back.

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1Formulas and methods

Time value of money

Future value
FV = PV·(1 + i)n
Present value
PV = FV/(1 + i)n
Several periods per year
i = r/m, N = m·n
Annuity, present value
PV = PMT·[1 − (1 + i)−n]/i
Annuity, future value
FV = PMT·[(1 + i)n − 1]/i

Method

  1. Draw a timeline with every cash flow and its timing.
  2. Match the rate to the period: a monthly rate for monthly payments.
  3. Use FV = PV·(1 + i)ⁿ for single amounts and the annuity formulas for equal payments.
  4. Check the sign and the order of magnitude of the answer.

NPV & IRR

Net present value
NPV = −C0 + Σ CFt/(1 + r)t
Equal cash flows
NPV = −C0 + CF·[1 − (1 + r)−n]/r
Internal rate of return
the r at which NPV = 0
Decision
accept when NPV > 0 (or IRR > required return)

Method

  1. List all cash flows with their year; the investment at year 0 is negative.
  2. Discount each cash flow: CFt/(1 + r)t.
  3. Add them up to get the NPV. Positive means the project earns more than r.
  4. For the IRR, find the rate that makes NPV zero by trial or interpolation.

Bond pricing & yield

Bond price
P = C·(1 − (1 + y)−n)/y + F/(1 + y)n
Semi-annual
C/2, y/2 and 2n periods
Current yield
C/P
Price and yield
yield up → price down

Method

  1. Find the coupon per period and the yield per period.
  2. Price = present value of the coupons (an annuity) + present value of the face value.
  3. For semi-annual coupons use half the coupon, half the yield and twice the periods.
  4. Check: if the yield is above the coupon rate, the price is below face value.

CAPM & WACC

CAPM
re = rf + β·(rm − rf)
WACC
E/V·re + D/V·rd·(1 − T)
Firm value
V = E + D

Break-even analysis

Contribution margin
CM = p − v
Break-even quantity
QBE = FC/(p − v)
Target profit
Q = (FC + profit)/(p − v)
Profit
π = (p − v)·Q − FC
Margin of safety
(Q − QBE)/Q

2Practice problems

1.Time value of moneyMedium
years0123456PV = ?€15 000

You need €15 000 in 6 years. An account pays 4.8% per year, compounded quarterly. How much must you deposit today? Find the present value PV.

FV = €15 0004.8% / 4n = 6
PV = €
2.Time value of moneyHard
months0123…132€300€300€300FV = ?

You save €300 at the end of every month for 11 years. The account pays 4.8% per year, compounded monthly. How much have you saved at the end? Find FV.

A = €3004.8% / 12N = 132
FV = €
3.NPV & IRRMedium
years01234−30 00011 00010 00011 00010 000

An investment of €30 000 gives these cash flows at the end of years 1 to 4: €11 000, €10 000, €11 000, €10 000. The cost of capital is 10%. Find the net present value NPV.

r = 10%CF0 = −30 000CF1 = 11 000CF2 = 10 000CF3 = 11 000CF4 = 10 000
NPV = €
4.NPV & IRRHard
years0123…8−100 00014 000+5%+5%+5%r = 10%, NPV = ?

A project costs €100 000 today. Its cash flow is €14 000 at the end of year 1 and grows by 5% per year until the last cash flow at the end of year 8. The cost of capital is 10%. Find the net present value NPV.

C0 = €100 000CF1 = €14 000g = 5%n = 8r = 10%
NPV = €
5.Bond pricing & yieldMedium
half-years0123…14€25€25€25 + €1 000P = ?

A bond with a face value of €1 000 pays a 5% annual coupon in two half-yearly payments and matures in 7 years. The yield to maturity is 7% per year. Find the price P of the bond.

F = €1 000coupon = 5%YTM = 7%n = 7
P = €
6.Bond pricing & yieldHard
years0123…9€895€40€40 + €1 000

A bond with a face value of €1 000 and an annual coupon of 4% matures in 9 years and sells for €895. Find its yield to maturity YTM in percent.

F = €1 000coupon = 4%n = 9P = €895
YTM = %
7.CAPM & WACCMedium
WACC = 5.58%equity€3 000 000re​ = ?debt€3 000 000rd​ = 4.5%T = 30%

A company has equity worth €3 000 000 and debt worth €3 000 000. Its WACC is 5.58%, its pre-tax cost of debt is 4.5% and the tax rate is 30%. Find the cost of equity re.

E = €3 000 000D = €3 000 000WACC = 5.58%rd = 4.5%T = 30%
re = %
8.CAPM & WACCHard
WACC = ?equity€8 000 000re​ = 9%bonds4 000 × €1 025coupon 6%, n = 6T = 25%

A company has equity with a market value of €8 000 000 and a cost of equity of 9%. Its debt consists of 4 000 bonds (face value €1 000, annual coupon 6%, 6 years to maturity) that trade at €1 025 each. The tax rate is 25%. Find the WACC, using the yield to maturity of the bonds as the pre-tax cost of debt.

E = €8 000 000re = 9%bonds: 4 000 × €1 025coupon = 6%n = 6T = 25%
WACC = %
9.Break-even analysisMedium
Q€revenuetotal costfixed costQ = ?

A product sells for €12 with a variable cost of €8 per unit. Fixed costs are €4 000 per month and profit is taxed at 25%. How many units Q must be sold per month to earn €1 500 after tax?

p = €12v = €8F = €4 000T = 25%after-tax profit = €1 500
Q = units
10.Break-even analysisHard
Q€revenuetotal costfixed costBE

A product sells for €30 per unit, with a variable cost of €20 per unit and fixed costs of €50 000 per year. Budgeted sales are 6 000 units. Find the margin of safety MS as a percentage of budgeted sales.

F = €50 000p = €30v = €20budget = 6 000
MS = %

3Solutions

1.Time value of money

Answer: PV = 11266 €

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.

Rate and number of periods

i = 0.048/4 = 0.012
N = 4·6 = 24

Present value

PV = FV/(1 + i)N = 15 000/1.331 = €11 265.72

Answer

PV = €11 265.72
2.Time value of money

Answer: FV = 52031 €

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.

Monthly rate and number of deposits

i = 0.048/12 = 0.004
N = 12·11 = 132

Future value of the deposits

FV = A·((1 + i)N − 1)/i = 300·(1.694 − 1)/0.004 = €52 031.48

Answer

FV = €52 031.48

You paid in €39 600 yourself; the rest is interest.

3.NPV & IRR

Answer: NPV = 3359 €

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.

Present value of each cash flow

CF0 = −30 000
CF1/(1 + 0.1)1 = 11 000/1.1 = 10 000.00
CF2/(1 + 0.1)2 = 10 000/1.21 = 8 264.46
CF3/(1 + 0.1)3 = 11 000/1.331 = 8 264.46
CF4/(1 + 0.1)4 = 10 000/1.464 = 6 830.13

Add them up

NPV = €3 359.06

Answer

NPV = €3 359.06

NPV is positive, so the project earns more than the required return.

4.NPV & IRR

Answer: NPV = −12988 €

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.

Present value of the growing annuity

((1.05)/(1.1))8 = 0.6892
PV = 14 000/(0.1 − 0.05)·(1 − 0.6892) = 87 011.72

NPV

NPV = 87 011.72 − 100 000 = −€12 988.28

Answer

NPV = −€12 988.28

NPV is negative, so the project earns less than the required return.

5.Bond pricing & yield

Answer: P = 890.8 €

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.

Per period

C = €25.00, i = 0.035, N = 14

Present value of the coupons

€25.00·(1 − 0.6178)/0.035 = €273.01

Present value of the face value

€1 000·0.6178 = €617.78

Price

P = €890.79

Answer

P = €890.79

The yield is above the coupon rate, so the bond sells at a discount.

6.Bond pricing & yield

Answer: YTM = 5.511 %

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.

Equation for the yield

€895 = €40·(1 − (1 + y)⁻⁹)/y + €1 000/(1 + y)⁹

Solve numerically

P(5%) = €928.92, P(6%) = €863.97
YTM = 5.511%

Answer

YTM = 5.511%
7.CAPM & WACC

Answer: re = 8.01 %

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).

Weights

V = €6 000 000, E/V = 0.5, D/V = 0.5

Debt part of the WACC

0.5·4.5%·(1 − 0.3) = 1.575%

Cost of equity

re = (5.58% − 1.575%)/0.5 = 8.01%

Answer

re = 8.01%
8.CAPM & WACC

Answer: WACC = 7.348 %

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).

Cost of debt (YTM)

1025 = 60·(1 − (1 + y)−6)/y + 1000/(1 + y)6
y = 5.5%

Market values

D = 4 000·€1 025 = €4 100 000
V = €12 100 000, E/V = 0.6612, D/V = 0.3388

WACC

WACC = 0.6612·9% + 0.3388·5.5%·(1 − 0.25) = 7.348%

Answer

WACC = 7.348%
9.Break-even analysis

Answer: Q = 1500 units

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).

Pre-tax profit needed

1 500/(1 − 0.25) = €2 000

Units needed

Q = (4 000 + 2 000)/4 = 1 500

Answer

Q = 1 500 units
10.Break-even analysis

Answer: MS = 16.67 %

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).

Break-even quantity

Q = F/(p − v) = 50 000/10 = 5 000

Margin of safety

MS = (6 000 − 5 000)/6 000·100 = 16.67%

Answer

MS = 16.67%

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