Pack change cost: the number nobody builds

A pack change begins as a line in a design quote and ends as a number nobody wrote down. The quote covers artwork. It does not cover the printed pouches already at your co-packer, the listings that need new hero images, or the fortnight your team spends explaining the new carton to a distributor.

Front of pack labelling proposals have put this question in front of a lot of Indian packaged food brands at once, but the trigger does not change the arithmetic. Whether it is a regulatory requirement, a claim you want to carry, a substrate that is no longer available or a design team tired of the current pack, build the change cost before you approve the design, not after.

The heads a design brief never mentions

Start with adaptation, because that is where the first surprise lives. One approved design has to be redrawn for every format you sell: the small pouch, the large pouch, the multipack sleeve, the shipper carton. Each has its own dieline, its own safe area and its own artwork round. Agencies quote the master design. You pay for the family.

Then pre-press: colour separations, proofing rounds, and a physical proof on the actual substrate, because the colour you signed off on screen is not the colour that comes off a matt laminate.

Then tooling. Gravure cylinders are charged per colour, per design, per format. Cutting dies are charged per carton shape. These do not amortise across your range the way people assume. Six SKUs in two sizes with a seven colour design is a tooling bill, not a rounding error.

Then the print minimum. Your converter has a minimum order quantity, usually stated in running metres or kilograms rather than in packs, and it almost never matches your reorder quantity. A change forces a fresh minimum of every printed component in one go, paid up front, before a single unit of the new pack sells.

The stock you already own is usually the biggest line

Everything carrying the old artwork is now dated. Count it in four places, because most brands count only the first. There is printed material at the converter, and more already delivered to the co-packer. There are finished goods in your own warehouse. And there are finished goods you no longer control, sitting at a distributor, in a marketplace fulfilment centre, in a dark store or on a truck.

You can influence the first two. The last two you can only sequence around. The accounting treatment of that exposure is a separate discipline, set out in inventory provisions. The commercial fact is blunter: it is cash you have already spent on a pack you have decided to stop using, and it stays on your side of the ledger. How to burn through it is the subject of changing pack artwork without stranding stock. For the cost model, you need only the exposure number.

Re-shooting, and the channel labour behind it

Every image showing the pack is now wrong: the white background shots at several angles, the back of pack shot that has to stay legible at thumbnail size, the lifestyle set, the A plus modules, the quick commerce tile, any ad creative in flight. Production cost scales with SKU count and channel count, not with how big the design change was.

Then someone has to load it all. Marketplace by marketplace, plus your own site, your distributor price list, your trade deck and your point of sale material. That is real labour by people who already have a job, and it is the head most often costed at zero. Price it at loaded hourly cost times channels times SKUs. Asset management is what stops that number doubling.

Re-approval, and the risk while the change is in flight

Some changes trigger a fresh check somewhere. A claim may need substantiation on file. A declared element may need re-verification. A platform may want a document set before it accepts the new image. Which applies depends on your category, your claims and the nature of the change, so confirm the specific requirements with your own legal or regulatory advisor rather than assuming a change is cosmetic because it looks cosmetic. If the recipe moves and not just the artwork, the list widens again, and reformulation carries its own downstream consequences.

Then the sales risk. If the change forces a new listing rather than an edit, you restart review count and ranking history, a revenue cost with no invoice attached. And any window where old stock sells through before new stock lands reads to a platform as an out of stock, not a transition. Holding both versions deliberately is the alternative, with its own rules, in running two pack versions on shelf.

Build it per SKU, then hold it against the reason

Total the heads and divide by SKU. This is not your product cost sheet, which is the recurring economics of making a unit. This is a one-off that either gets recovered across the units the new pack actually sells, or does not get recovered.

Now hold that number against the reason for the change, SKU by SKU. A change that is obviously right for a hero doing serious volume is often indefensible on the fortieth item in the tail, where tooling plus one minimum print run can exceed everything that SKU contributes in a year. That comparison is what turns “we are refreshing the range” into “we are changing six SKUs now and leaving the rest until their next natural tooling event”. Where the change is forced, the same maths tells you which tail SKUs are cheaper to retire than to re-tool, a different decision from range architecture but built on the same evidence.

The lever that removes most of the cost

The biggest variable is not what you negotiate with the printer. It is when you switch. If the changeover lands at the natural exhaustion point of the old printed material and the old finished goods, most of the write-off head disappears.

So work backwards from the reorder point, not forwards from the design approval date. Approve the artwork, hold the tooling order, and place it so the first new run replaces the last old run. Then tell the channel in the order set out in telling the channel before you change the pack, and read when not to change the pack first, because this number is the input to that decision.