For Independent Food Distributors

Marginal Cost Calculator

Know the true cost of one more case, including the step cost of an added truck or route, so you can price new volume off what it actually costs you.
VoiceOrder app ordering screen

Marginal Cost Calculator

See what it really costs to move one more case, and whether the extra volume is worth taking on.

Your operation today

$
Warehouse, trucks, salaries, insurance. Costs that do not move with volume.
$
Product cost, freight in, pick and pack, fuel per case.
cases/mo
$

The extra volume you are considering

cases/mo
Volume after the new account or route is added.
$
Per month. An added truck, driver, route, or cooler space. Enter 0 if it fits in what you already run.
Marginal cost per extra case
$23.00
What each of the 1,200 extra cases actually costs you
Monthly profit change
+$6,000
$12,000 today, $18,000 after
Margin on each extra case
$5.00
Selling price minus marginal cost
Cases to cover the new fixed cost
600
Break-even on the added overhead
Average cost per case
$26.00 → $25.50
Today, then after the extra volume
Contribution margin per case
$10.00
Price minus variable cost, before fixed costs
Your average cost is $26.00 per case, but the next case only costs $23.00. Price off the average and you will turn down volume that would have made you money.
Growing volume should not mean more order entry. VoiceOrder Solutions captures orders 24/7 and sends them straight to your system, so your reps can add accounts instead of retyping them.
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Estimates only. Confirm your cost figures before committing to new volume.
$23.00

what the next case costs, against a $26.00 average

$5.00

margin on each extra case at a $28.00 price

600

cases to cover an added $6,000 route

Sound Familiar?

Your average cost is telling you to turn down good volume

Most distributors still price new volume off their average cost per case. Here is what that habit costs you.
Percent sign for the margin a load really earns against true cost

"We passed on a load because the price looked below our cost"

A $27.00 offer looks like a loss against a $26.00 average. The next case only costs $23.00, so the volume would have paid.
Rising line for volume added on a new route while margin stayed flat

"We added a route and the margin never showed up"

A new truck carries its fixed cost from day one. Without a break-even in cases, you find out it was early a quarter later.
Check mark for a quoted price a rep can defend

"My rep quoted a number he could not defend"

Reps need a floor on the spot. Without one the number comes from memory, and the margin on the load is a surprise.
Three Steps

How to use the marginal cost calculator

Enter what you run today, add the volume you are weighing, and read the cost of the next case.
1

Enter your operation today

Fixed costs per month, variable cost per case, your current cases, and your selling price per case.
2

Add the volume you are weighing

The new total cases, plus any step cost the volume triggers, like a second truck or an added route.
3

Read the marginal cost and compare

Put the cost of each extra case next to your price. If the price clears it, the volume pays, even below your average cost.
Built For Distributors

What the calculator shows you

Two cost build-ups side by side. $156,000 across 6,000 cases gives a $26.00 average cost, while $27,600 across the next 1,200 cases gives a $23.00 marginal cost.
Marginal cost

The cost of the next case, not the average

Your average spreads fixed costs over the volume you already move. The marginal cost counts only what the next case adds, so it is the number a new account has to clear.
Separates fixed cost from cost per case
Adds the step cost of a new truck or route
Shows the cost of each extra case
Compares it against your selling price
Break-even

How many cases cover a new route

A second truck carries its cost from the first day. The calculator turns that into a case count, so you know how much volume the route needs before it pays.
Turns added overhead into cases
Uses your real contribution per case
Flags volume that arrives too early
Shows the margin left per case
Break-even on a new route. 600 of the 1,200 extra cases cover the $6,000 of new fixed cost, leaving 600 cases worth $6,000 of profit.
Monthly profit rising from $12,000 at 6,000 cases to $18,000 at 7,200 cases, with average cost per case falling from $26.00 to $25.50.
Profit change

What the volume does to monthly profit

Volume that looks good per case can still shrink profit once a step cost lands. The calculator shows profit before and after, so the decision is a number.
Profit today and after the volume
The swing in dollars per month
Margin on each extra case
Average cost before and after
Pricing floor

The lowest price the volume can carry

Once you know the marginal cost you have a floor to quote against in the field, instead of defending a number that came from memory.
A floor per account, not per company
Room to match a competitor safely
A reason to walk away
Consistent quoting across reps
A price scale showing the $28.00 list price, the $26.00 average cost, and the $23.00 marginal cost floor, with $3.00 a case of quoting room between them.
After The Numbers

What to do once you know the cost of the next case

The number only helps if it changes what you quote and what you accept. Start here.
Dollar sign, for pricing off the cost of the next case

Price off the next case

Balance scale, for setting a price floor per account

Set a floor per account

Rising chart, for taking volume that clears the floor

Take volume that clears it

Delivery truck, for filling routes before adding another one

Fill routes before adding trucks

Cash bills, for counting the step cost of a route up front

Count the step cost up front

Cycling arrows, for rechecking the number when volume jumps

Recheck when volume jumps

Price tag, for quoting from the floor instead of memory

Quote from the floor, not memory

Downward trend line, for reviewing your thinnest accounts

Review your thinnest accounts

Side by side bars, for comparing marginal cost against average

Compare against your average

Six Levers

What actually moves the cost of your next case

Marginal cost is not one number you are stuck with. These are the parts of it you can change.
Floor plan grid, for route density across a delivery area

Route density

More drops on a route you already run spreads the same truck cost over more cases.
Stacked cases, for how full each truck runs

Truck fill

An empty return leg is cost with no cases against it. Fill the truck before you add one.
Case box, for cases dropped at each stop

Cases per drop

Bigger drops cut the handling and stop time carried by each case.
Invoice sheet, for buying terms on each case

Buying terms

Product cost is the largest part of the next case. Volume and timing move it.
Clock face, for the time spent picking and packing an order

Pick and pack time

Labor per case shows up in every extra case you take on.
Shrinking box, for product lost to shrink and spoilage

Shrink and spoilage

Product that never ships still costs you. It raises the cost of everything that does.

See how VOS keeps order entry flat as you add accounts

VoiceOrder Solutions captures your customers' orders 24/7 and sends them to your system in your format.
The Difference

Pricing off the next case, or pricing off the average

Your average cost and your marginal cost answer different questions. Only one of them tells you what new volume has to clear.

The call

Priced off marginal cost

Priced off average cost

Priced off gut feel

Knows the floor a new account must clear
Uses the average instead
No number at all
Counts the step cost of an added route
Buried in the average
Usually forgotten
Separates fixed cost from cost per case
Blends them together
Not separated
Shows profit before and after the volume
Hard to see
Not calculated
Lets you win volume below average cost
Turns it away
Coin flip
Gives reps a number they can defend
One company-wide number
Memory
Flags a route that arrives too early
Shows up a quarter later
Found out the hard way
Repeatable across accounts and reps
Inconsistent
Not repeatable
Margin on each extra case
$5.00 at a $28.00 price
Looks like $2.00
Unknown
Break-even on a $6,000 route
600 cases
Not shown
Guesswork
FAQ

Common questions about marginal cost

What is marginal cost?
Marginal cost is the cost of moving one more case: the product, freight and handling, plus any new fixed cost the extra volume triggers, like an added route.
How do you calculate marginal cost?
Divide the change in total cost by the change in cases. Work out total cost before and after the new volume, including any step cost, subtract one from the other, then divide by the extra cases.
What is the difference between marginal cost and average cost?
Average cost spreads every cost across every case. Marginal cost counts only the next case, which is usually cheaper because your fixed costs are already covered by today's volume.
Why does marginal cost matter for pricing?
It sets the floor for new volume. As long as the price clears the marginal cost and covers any new route, the account makes you money, even when the price sits below your average cost.
What is a step cost?
A fixed cost that appears all at once when volume crosses a line, like a second truck, a driver or extra cooler space. It belongs in the marginal cost of the volume that triggered it.
How can a distributor lower marginal cost?
Fill the trucks and routes you already run before adding new ones, since an added truck raises the cost of every case on it until the volume catches up.
Should you ever price below your average cost?
Yes, when the price still clears the marginal cost and any step cost the volume adds. Below that floor the volume costs you money.

Adding volume should not mean adding order entry.

VoiceOrder Solutions captures your customers' orders 24/7 and sends them straight to your system in your format, so the accounts you win do not bury your team in typing.