Imagine you're the stores manager at Rajesh & Co. Pvt. Ltd., a mid-size manufacturer. You have 500 different raw materials in your warehouse. You cannot watch all 500 items with the same intensity — you'd go mad. ABC Analysis solves this: it tells you which items deserve your maximum attention by ranking inventory based on annual consumption value (quantity used × unit cost), not just quantity or price alone.
The logic is simple — in almost every business, a small number of items account for the bulk of the money spent. This is just the Pareto Principle (80-20 rule) applied to inventory. ABC divides your stock into three categories: Category A — roughly 10-20% of items by number, but they represent ~70-75% of total consumption value. These are your high-value, critical items (think imported raw steel or specialty chemicals). Tight controls, frequent review, low safety stock, accurate forecasting — all for A items. Category B — about 20-30% of items, contributing ~15-20% of value. Moderate control, periodic review. Category C — the remaining 50-70% of items by number, but only ~5-10% of total value (nuts, bolts, stationery, small consumables). Bulk ordering, simple controls, higher safety stock is fine here since each unit is cheap.
Why does this matter for cost management? Because management time and control effort are scarce. Spending the same energy on ₹5 bolts as on ₹50,000 motors is wasteful. ABC ensures selective inventory control — concentrate resources where the rupee impact is highest. In your exam, questions will ask you to (1) calculate annual consumption value for each item, (2) rank items highest to lowest, (3) compute cumulative % of value, and (4) classify into A, B, C. This appears frequently as a 4-6 mark question in Paper 4, often combined with a brief note on control measures for each category.