What Is Material Consumption?
Before a business can price anything honestly, it needs to know how much raw material it actually burned through.
Material consumption is the quantity and value of raw material used up during a period to make what you sold. It sits between buying and selling: stock arrives, it waits in kitchen inventory or a store room, and the part issued out and used up is your consumption. For an Indian restaurant, bakery or small manufacturing unit, this figure (not the purchase bill) is what becomes cost of goods sold on the P&L.
How Material Consumption Is Worked Out
The arithmetic is old and boring, which is exactly why it works. Whatever you started with, plus what came in, minus what is still on the rack, was consumed.
Material consumed = Opening stock + Purchases − Closing stock
| Element | What it covers | Effect on the figure |
|---|---|---|
| Opening stock | Material lying in the store at the start of the period | Adds |
| Purchases received | Goods actually received, not merely ordered | Adds |
| Inward transfers | Stock moved in from a central kitchen or sister outlet | Adds |
| Outward transfers | Stock sent out or returned to the vendor | Reduces |
| Closing stock | Material physically counted at period end | Reduces |
| Spoilage and wastage | Material used up but never sold | Stays inside consumption unless booked separately |
That last row is where most owners trip up. Spoiled tomatoes and a burnt batch of buns both vanish from the rack, so a raw stock count treats them like material that earned revenue. But splitting them out turns a plain count into a usable consumption report.
Difference Between Material Consumption and Material Purchase
Owners often read the month’s purchase total as the month’s material cost. But they are two different numbers, and in any month where you dip into old stock or build up new stock, they will not match. Our restaurant inventory management guide covers the counting discipline behind the split.
| Aspect | Material consumption | Material purchase |
|---|---|---|
| What it measures | Raw material used up in the period | Raw material bought in the period |
| Source record | Stock counts plus issue entries | Vendor purchase invoices |
| Reacts to opening stock | Yes | No |
| Where it lands | Cost of goods sold on the P&L | Inventory, until it is used |
| Period it belongs to | The one you sold in | The one goods arrived in |
Material Consumption Example
Take a bakery unit in Sitabuldi, Nagpur, closing its books for June 2026. Stock was counted on the 1st and again on the 30th.
| Material | Opening (kg) | Purchased (kg) | Closing (kg) | Consumed (kg) | Rate (Rs./kg) | Consumption value (Rs.) |
|---|---|---|---|---|---|---|
| Refined flour | 180 | 400 | 145 | 435 | 38.50 | 16,747.50 |
| Butter | 22 | 60 | 18 | 64 | 512.00 | 32,768.00 |
| Milk powder | 15 | 35 | 12 | 38 | 396.00 | 15,048.00 |
| Sugar | 90 | 150 | 71 | 169 | 44.20 | 7,469.80 |
| Total | 307 | 645 | 246 | 706 | 102.03 (blended) | 72,033.30 |
Note: this is an invented example for illustration only. The quantities, rates and outlet are not drawn from any real Petpooja client.
The purchase bills for that month came to Rs.66,610. Consumption came to Rs.72,033.30. The bakery ate into stock bought in May, so anyone reading only the purchase file would have understated June’s material cost by Rs.5,423.30 and reported a margin that never existed.
Why Your Consumption Figure Decides Your Real Margin
Section 35 of the CGST Act, 2017 requires registered businesses to keep a true and correct account of production and of stock. Rule 56(12) of the CGST Rules goes further for manufacturers: monthly production accounts with quantitative details of raw material used, plus waste and by-products. So consumption is not just a management figure. It is a record an officer can ask for.
There is a tax edge too. Input tax credit is blocked under Section 17(5)(h) on goods lost, stolen, destroyed or written off, so spoilage buried inside a consumption number turns into a credit reversal nobody budgeted for. And Accounting Standard 2 requires inventories to be carried at the lower of cost and net realisable value, which feeds straight back into the consumption you report.
The day-to-day payoff is simpler. A reliable consumption figure gives you a real food cost percentage and shows which vendor rate hike actually hurt. Our food cost calculator template will do that maths once your counts are honest.
Find the Best Inventory Management Software for Your Outlet
Counting four materials by hand is fine. Counting sixty, across two outlets, on the 30th of every month, is where spreadsheets quietly give up. The best inventory management software does the subtraction for you: every bill deducts recipe-level quantities from stock, purchase entries add back to it, and the consumption figure is waiting before you ask.
Petpooja POSS does this for restaurants, bakeries and cloud kitchens, while retail and FMCG businesses get the same stock-to-consumption tracking through Petpooja Invoice. Worth seeing what your own consumption sheet would look like if nobody had to build it.
Frequently Asked Questions
Close, but not identical. Consumption is the raw material used up, while cost of goods sold can also carry conversion costs such as packaging or direct labour.
Portioning drift, trimming loss, spoilage and unrecorded staff meals are the usual four. Comparing recipe-based consumption against counted consumption every month is how you find which one is costing you, and a recipe costing calculator gets you the recipe-side number.
It does, unless you record it separately. Most owners prefer a separate wastage entry, because one blended number hides whether the problem is purchasing or handling. Our guide on controlling food wastage covers the habits worth building.
Monthly at a minimum, weekly for high-value or fast-moving items. Meat, dairy and edible oil move too quickly for a 30-day gap to tell you anything useful.
Yes, provided recipes are mapped and purchase entries are current. The software deducts material as bills are punched, but a physical count is still needed to catch what the system could not see, such as store-room losses and pilferage.
