BUSINESS ECONOMICS'
FORMULAS
3rd PART – TOPIC 7
Break-even point.-
Break-even point.-
Q = TFC : (P – UVC)
Total revenues.-
TR = P x Q
Costs.-
TC = TFC + TVC
TC = TFC + UVC x Q
UVC = TVC : Q
AvgC = TC : Q
Profit.-
Profit = TR – TC => Profit = P x Q – TC
Profit = TR – TFC – TVC => Profit = P x Q – TFC – TVC
Profit = TR – TFC – UVC x Q => Profit = P x Q – TFC – UVC x Q
Chart.-
Qmax = 2 x Break-even point (if the amount of sold units is higher than this quantity we must get to the amount of sold units if we need to represent it in the chart)
TRmax = P x Qmax
Calculate TR0 and TRbep
Calculate TC0 and TCbep
Calculate TVC0 y TVCbep (if the problem asks for it)
Acquisition cost and Production cost.- The formulas are similar to the formulas of break-even point but with these variations:
Costs.-
ADQcost = P x Q (similar to TR = P x Q)
PROcost = TFC + TVC (similar to TC = TFC + TVC)
PROcost = TFC + UVC x Q (similar to TC = TFC + UVC x Q)
Chart.-
Qmax = 2 x Break-even point (if the amount of produced units is higher than this quantity we must get to the amount of produced units if we need to represent it in the chart)
ADQcostmax = P x Qmax
Calculate ADQcost0 and ADQcostbep
Calculate PROcost0 and PROcostbep
Wilson Model.-
Economic order quantity.- Q* = sqrt (2DS : H)
Q* = optimal order quantity
D = annual demand quantity of the product
S = fixed cost per order (not per unit, in addition to unit cost)
H = annual holding cost per unit (also known as carrying cost or storage cost) (warehouse space, refrigeration, insurance, etc. usually not related to the unit cost)
How often do we need to realise the order?.-
Example.- The firm needs 1,000 kgs each year (D), works 300 days annually and its orders reach and amount of 100 kgs (Q)
1,000 kgs. --------------------- 300 days
100 kgs. --------------------- x days
Which is the stock level to do a new order?.-
Example.- The firm needs 1,000 kgs. each year (D), works 300 days annually and the average time to receive the order is five days
1,000 kgs. --------------------- 300 days
x kgs. --------------------- 5 days
Productivity.-
Factor productivity = Output quantity of a product : Input quantity of a factor (the outcome will be chairs – for example- per hour man or per hour machine)
Global productivity of year zero.-
PG0 = (P1Q1 + P2Q2 + … + PnQn) : (f1F1 + f2F2 + … + fnFn)
Global productivity of year one.-
PG1 = (P1Q'1 + P2Q'2 + … + PnQ'n) : (f1F'1 + f2F'2 + … + fnF'n) (we must use the prices from year zero)
Global productivity index 0-1.-
IPG0-1 = PG1 : PG0
3rd PART - TOPIC 8
Share market.-
Share market = Firm's sales : Sector's sales
3rd PARTE – TOPIC 9
Pay-back.-
Initial outlay |
1st year |
2nd year |
3rd year |
|||
---|---|---|---|---|---|---|
|
Collection |
Payment |
Collection |
Payment |
Collection |
Payment |
200,000 |
70,000 |
30,000 |
90,000 |
10,000 |
100,000 |
10,000 |
We must do a summary of the previous table by subtracting the payments from the collections:
Initial outlay |
1st year |
2nd year |
3rd year |
---|---|---|---|
200,000 € |
40,000 € |
84,000 € |
90,000 € |
Calculate the years.-
1st year.- We have recovery only 40,000 € (so we haven't got still the 200,000 €)
2nd year.- We have recovery 40,000 + 84,000 = 124,000 € (so we haven't got still the 200,000 €)
3rd year.- We have recovery 40,000 + 84,000 + 90,000 = 214,000 (we have got more than 200,000 € so pay-back is two years and something more)
Calculate the months.- We take the year where we have got more than 200,000 € and we do the following rule of three, being 76,000 = 200,000 – 40,000 – 84,000:
90,000 € ------------------------ 12 months
76,000 € ------------------------ x months x = 10.13 months
Calculate the days.- We only take the decimal numbers
1.00 months --------------------- 30 days
0.13 months --------------------- x days x = 3.9 = 4 days
Total calculation.- Pay-back is 2 years, 10 months and 4 days
3rd year cash-flow calculation.-
Example.- Initial outlay = 170,000 €; 1st year cash-flow = 50,000 €; 2nd year cash-flow = 90,000 €; Pay-back = 2 years and 5 months
3rd year cash-flow.- We recover 30,000 in five months (170.000 – 50.000 – 90.000 = 30.000). So:
30,000 € ------------------------- 5 months
x € ------------------------ 12 months x = 72,000 €
Cash Conversion Cycle.-
Cash Conversion Cycle = Raw Material Conversion Period (Warehouse Conversion Period) + Goods in Process Conversion Period (Production Conversion Period) + Finished goods Conversion Period (Sales Conversion Period) + Receivables Conversion Period = RMp + GPp + FGp + Rp
Raw material Conversion Period (Warehouse Conversion Period).-
Raw material rotation = n1 = Annual raw material purchases : Average raw material stock
Raw Material Conversion Period = RMp = 365 : n1
Goods in Process Conversion Period (Production Conversion Period).-
Goods in Process rotation = n2 = Annual cost of production : Average goods in process stock
Goods in Process Conversion Period = GPp = 365 : n2
Finished goods Conversion Period (Sales Conversion Period).-
Finished goods rotation = n3 = Annual sales at factor cost : Average finished goods stock
Finished goods Conversion Period = FGp = 365 : n3
Receivables Conversion Period.-
Payment from customers rotation = n4 = Annual sales at market prices : Average receivables stock
Receivables Conversion Period = Rp = 365 : n4
Shares values and dividend.-
Nominal value.-
NV = Share capital : Number of shares
Market value.-
MV = Nominal value x Quotation
MV = The problem gives you the value (example: the firm quotes in the Stock Market at 27 €/share)
Theoretical value.-
TV = (Share capital + Reserves) : Number of shares
TV = Average dividend : Interest rate (in amount per one unit – e.g. 10% = 0,1)
Dividend per share.-
D = Distributable profit : Number of shares
Net worth.-
Net worth = Share capital + Reserves
Net Present Value.-
NPV = - R0 + [R1 : (1 + i)] + [R2 : (1 + i)2] +... + [Rt : (1 + k)t] (we must add the salvage value, as a revenue, last year)
4th PART – TOPIC 10
Working capital.-
Working capital = Current assets – Current liabilities
Equity.-
Equity percentage = Net worth / (Net worth + Liabilities)
Liabilities.-
Liabilities percentage = (Current liabilities + Non-current liabilities) / (Net worth + Liabilities)
Aportación.-
Contribution = Share capital : Number of shareholders (or number of shares according to the problem)
Economic-financial balance.-
Balance.- Non-current assets + Working capital = Long term resources or Non-current assets + Working capital = Net worth + Non-current liabilities
Annual depreciation expense.-
Annual depreciation expense = (Countable value – Salvage value) : Number of years
Economic and financial profitability.-
Economic profitability = Profit before interests and taxes : Assets
Liabilities = Assets x Liabilitites percentage
Interests = Liabilities x Interest rate
Countable profit = Profit before interests and taxes - interests
Financial profitability = (Profit before interest and taxes – Interests - Taxes) : Net wort
Taxes = (Profit before interests and taxes - Interests) x Tax rate
Stock market value.-
Stock market value = Quotation x Number of shares
Price Earnings rate.-
PER = Quotation : Dividend
Cash-flow.-
Cash-flow = Countable profit + Amortization – Taxes
Countable profit = Profit before interests ans taxes - Interests
Equity.-
Equity = Long term capitals – Non-current liabilities