Free tool
Product Cost Sheet Builder
Build the full cost of one product, line by line, in the CAS-4 layout: materials, labour, overheads, cost of production, cost of sales, and a price that protects your margin.
Checked: November 2026
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How this tool works
How the sheet is built
Material, direct employee cost and direct expenses make prime cost. Factory overheads and R&D make works cost. Production administration and primary packing, less scrap, give the cost of production (CAS-4). Other administration, selling and finance costs give the cost of sales.
The suggested price
Cost of sales per unit ÷ (1 − the margin you want). A 10% margin on a ₹90 cost needs a ₹100 price, not ₹99. GST is added on top.
The quantity slider
Overheads for the batch stay the same when you make more, so each unit carries less. Slide the quantity to see how much your cost per unit depends on volume.
Learn the layout
The CAS-4 lesson builds the same sheet for a 2,000-uniform order. Load the example to see those numbers here.
Indicative, not professional advice. It uses only what you enter.