The commission cheque is the price of the floor space. It is one multiplication — but getting the base wrong, gross versus net of sales tax, is where operators lose real money.
$1,240 in monthly sales at 12% owes the location $148.80.
The example
Three accounts, each on its own commission rate.
| A | B | C | D | E | |
|---|---|---|---|---|---|
| 1 | Location | Gross sales | Rate | Commission | You keep |
| 2 | Break room A | 1240 | 12% | $148.80 | $1,091.20 |
| 3 | Gym lobby | 860 | 15% | $129.00 | $731.00 |
| 4 | Shop floor | 2100 | 8% | $168.00 | $1,932.00 |
The formula
PRODUCT multiplies the two cells; a subtraction shows what is left:
How it works
Both inputs deserve a moment:
B2is the sales figure the contract names. Read it carefully — gross including tax and net of tax can differ by 8% or more.C2is the rate, entered as a percentage so 12% stores as 0.12.PRODUCT(...)returns the commission owed.=B2-D2shows the revenue you actually keep, before product cost.
Commission comes off the top, so a 15% account needs a materially better product margin than an 8% one to be worth the same to you.
Try it: interactive demo
Enter gross sales and the commission rate.
Variations
Commission on net of sales tax
Strip the tax out first when the contract says net.
Tiered rate above a sales threshold
Reward high-volume accounts without repricing the base.
Pitfalls & errors
Nail down gross versus net in the agreement. On a $1,240 machine, commissioning gross-with-tax instead of net costs roughly $11 a month per account — small until you have forty of them.
Track commission as a percent of gross profit, not of sales. A 12% commission on a low-margin snack line can be most of what you earned.
Practice workbook
Frequently asked questions
What is a normal vending commission?
Should I pay commission on a machine that loses money?
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