Managerial Accounting

Accounting principles and financial statements

Accounting rests on concepts and conventions that make statements comparable. The business entity concept treats the firm as separate from its owners, so personal transactions are excluded. The money measurement concept records only transactions expressible in money, so skilled staff and brand reputation, though valuable, do not appear as assets unless acquired in a transaction. The going concern concept assumes the firm will continue, so assets are carried at cost rather than liquidation value. The accrual concept records revenue when earned and expenses when incurred, not merely when cash moves, and the matching concept pairs expenses with the revenues they help generate in the same period. Consistency requires the same methods period after period so trends are meaningful, conservatism requires anticipating losses but not gains, and materiality allows trivial items to be treated simply. The dual aspect concept, that every transaction has equal debit and credit effects, underlies double-entry bookkeeping and the accounting equation: assets equal liabilities plus owners' equity.

The three main financial statements answer different questions. The income statement, also called the statement of profit and loss, shows revenues, expenses and profit over a period: gross profit after cost of goods sold, operating profit after operating expenses, and net profit after interest and tax. The balance sheet shows financial position at a point in time, with assets on one side and liabilities plus equity on the other, classified into current and non-current. Current assets such as cash, receivables and inventory are expected to convert to cash within a year; non-current assets such as plant and equipment serve longer. Current liabilities fall due within a year, while non-current liabilities fall due later. The cash flow statement explains why cash changed, classifying flows into operating activities from core business, investing activities in long-term assets, and financing activities from borrowing, repayment and equity. Profit and cash differ because of accruals, credit sales, depreciation and working capital movements: a profitable firm can run out of cash if customers pay slowly and inventory piles up, and a loss-making firm can survive for a time on borrowing. Managers must therefore read all three statements together, never profit alone.

Financial statement analysis

Financial statement analysis turns raw statements into judgements by comparison. Comparative statements place two or more periods side by side, showing absolute and percentage changes so trends and turning points become visible. Common-size statements express each item as a percentage of a base — sales for the income statement, total assets for the balance sheet — so that firms of different size, or the same firm over time as it grows, can be compared on structure rather than scale. Trend analysis extends comparison over several periods, revealing whether a change is a blip or a direction. Ratio analysis compresses relationships into single numbers, but a ratio is only a starting point for enquiry, not a verdict: it must be compared with past periods, budgets, competitors and industry norms, and read with knowledge of accounting policies and business context.

Liquidity ratios test short-term survival. The current ratio divides current assets by current liabilities, and the quick ratio, also called the acid-test ratio, divides quick assets — current assets excluding inventory and prepaid expenses — by current liabilities, because inventory may not convert to cash quickly. Solvency ratios test long-term survival: the debt-equity ratio compares borrowed funds with owners' funds, and the interest coverage ratio compares earnings before interest and tax with interest expense, showing how comfortably interest is covered. Activity or turnover ratios test efficiency: inventory turnover divides cost of goods sold by average inventory, receivables turnover divides credit sales by average receivables, and the average collection period translates receivables turnover into days of sales tied up in credit. Profitability ratios test earning power: gross profit ratio, net profit ratio, return on assets, and return on equity, which combines profitability, efficiency and leverage. The DuPont decomposition explains return on equity as net profit margin multiplied by asset turnover multiplied by equity multiplier, showing whether a high return comes from margins, efficient asset use, or leverage — three very different stories with different risks.

Cost sheet, marginal costing and CVP

Cost accounting classifies costs to support decisions. By nature, costs are material, labour and other expenses. By behaviour, fixed costs stay constant in total within a relevant range, variable costs change in total with activity, and semi-variable costs have both elements. By function, costs are production, administration, selling and distribution. By traceability, direct costs are traced to a cost unit, while indirect costs, or overheads, are allocated and apportioned. The cost sheet organises these classifications into a statement: prime cost is direct material plus direct labour plus direct expenses; factory cost adds factory overheads; cost of production adds opening and closing work-in-progress adjustments and administrative overheads where the format includes them; cost of goods sold adjusts for finished stock; and cost of sales adds selling and distribution overheads, with profit added to reach sales value. Building a cost sheet accurately is largely a matter of placing each item in the right layer and adjusting for stocks at the right point; most errors come from adding selling overheads too early or forgetting a stock adjustment.

Marginal costing, also called variable costing, charges only variable costs to products and treats fixed costs as period costs written off against total contribution. Contribution is sales minus variable costs, and it is the amount available to cover fixed costs and then earn profit. This contrasts with absorption costing, which charges fixed overheads to products through absorption rates; the two methods give different profits when inventory levels change, because absorption costing carries fixed cost in closing stock while marginal costing does not. Cost-volume-profit analysis builds on contribution. The break-even point is where total revenue equals total cost, so contribution equals fixed costs and profit is zero. The profit-volume ratio, contribution divided by sales, shows contribution per rupee of sales. Margin of safety is actual or budgeted sales minus break-even sales, expressed in units, value or percentage, and it measures how far sales can fall before losses begin. A high margin of safety means resilience; a low one means vulnerability. Cost-volume-profit analysis assumes constant selling price, constant variable cost per unit, fixed costs constant in the relevant range, and a constant sales mix where several products exist; when those assumptions break, the analysis must be rebuilt rather than trusted blindly.

Standard costing and variance analysis

Standard costing sets predetermined costs for material, labour and overheads under efficient operating conditions, compares actual costs with standards, and investigates variances, the differences between standard and actual. Its purposes are control, by highlighting exceptions; performance measurement, by giving a benchmark; and pricing and budgeting, by providing expected costs. A variance is favourable when actual cost is below standard or actual revenue above standard, and adverse when the reverse holds, though favourable is not always good: a favourable material price variance achieved by buying inferior material may cause an adverse usage variance and quality problems downstream. Variance analysis therefore traces causes, not merely labels, and investigates only material variances, following management by exception.

Material variances split into price and usage. Material cost variance is standard cost of standard quantity for actual output minus actual cost. Material price variance is actual quantity multiplied by the difference between standard price and actual price. Material usage variance is standard price multiplied by the difference between standard quantity for actual output and actual quantity used. Labour variances follow the same logic: labour cost variance compares standard cost for actual output with actual cost; labour rate variance is actual hours multiplied by the difference between standard and actual rates; labour efficiency variance is standard rate multiplied by the difference between standard hours for actual output and actual hours worked. Overhead variances are more complex because overheads contain fixed and variable elements and depend on volume and capacity, but the core ideas remain: variable overhead expenditure and efficiency variances, and fixed overhead expenditure and volume variances, the latter arising when actual output differs from budgeted output so fixed overhead is over- or under-absorbed. The management lesson is to investigate the interaction: a price variance may explain a usage variance, a rate variance may explain an efficiency variance, and only joint reading gives the true cause.

Financial management and capital structure

Financial management is concerned with investment, financing and dividend decisions that maximise shareholder wealth, measured by the market value of the firm rather than by short-term accounting profit alone. The investment decision chooses assets and projects, the financing decision chooses the mix of debt and equity that funds them, and the dividend decision chooses how much profit to distribute versus retain. These decisions interact: a project that looks attractive at one cost of capital may fail at another, and a dividend policy that starves investment destroys future earnings. The time value of money underlies investment appraisal: a rupee today is worth more than a rupee tomorrow because it can be invested, so future cash flows are discounted to present value at a rate reflecting risk and opportunity cost. The cost of capital is the weighted average of the costs of debt, preference capital and equity, where cost of debt is adjusted for tax because interest is deductible, and cost of equity reflects shareholder expectations and risk.

Capital structure is the mix of debt and equity, and its choice balances benefit against risk. Debt is cheaper than equity because lenders bear less risk and interest is tax-deductible, and it does not dilute ownership, but it creates fixed obligations that must be met even in bad years, raising financial risk and the danger of distress. Equity is flexible, with no fixed obligation, but it is costlier and dilutes control. The traditional view holds that moderate debt first lowers the weighted average cost of capital and raises firm value, but beyond an optimum, rising risk raises both debt and equity costs and value falls, giving an optimal capital structure. The Modigliani-Miller proposition, under perfect-market assumptions including no taxes and no bankruptcy costs, argues that capital structure is irrelevant to firm value; with corporate taxes, debt adds value through the tax shield, but bankruptcy and agency costs in the real world limit borrowing. Theories of practice add nuance: the trade-off theory balances tax benefits against distress costs, and the pecking-order theory observes that firms prefer internal funds first, then debt, then new equity, because managers know more than outside investors and new equity may signal overvaluation. Managers therefore choose structure by weighing cost, risk, control, flexibility and market conditions, not by chasing the cheapest single source.

Budgeting and leverages

A budget is a quantitative plan for a defined period, expressed in money, that coordinates activities, communicates targets, motivates performance and provides a standard for control. The master budget integrates operating budgets — sales, production, material, labour, overhead and selling budgets — with financial budgets — cash budget, budgeted income statement and budgeted balance sheet. The sales budget drives most others, because production, purchases and labour all follow expected sales. A fixed budget is set for one level of activity and becomes misleading when activity differs; a flexible budget adjusts costs for the actual level of activity, separating volume effects from efficiency effects in variance analysis. Zero-based budgeting requires every activity to be justified from zero each period rather than adding increments to last year's budget, which can expose obsolete activities but is time-consuming. Cash budgets are especially important because they forecast receipts and payments month by month, revealing shortfalls in advance so borrowing or collection effort can be planned.

Marginal costing versus absorption costing

Ratio families and what they test