Formulas

• Gross Profit = Sales - cost of goods sold
• Net profit = gross profit + other income - expenses
• Cash balance = cash inflows - cash outflows
• Government Spending = Injection (G)
• Investment = Injection (I)
• Imports = Leakages (M)
• Savings = Leakages (S)
• Taxation = Leakages (T)
• Exports = Injections (X)