NicksPizza:
HOWEVER, my utilities range from $900 to $400 within the year. For my money, a larger than 100% difference is variable . . . but it is also predictable, and therefor, fixed cost.
You’re right Nick.
So a little Econ 101 (micro)… Something being variable does not make it a ‘variable cost’ in the accounting sense. It needs to vary directly with sales. You can argue that there’d be some differences based on sales, but it’s very small as a percentage of the overall cost. Your ovens are going to be running whether you make a pizza or not, and they’re going to use pretty much the same amount of gas either way.
The other accounting test is this: If it’s truly variable, the cost should be ZERO when you have ZERO sales. If you open one day and sell nothing, you shouldn’t incur any variable costs. Utilities fail this one as well… they’re all going to still be running. You’ll use a little bit less of each, but not nearly enough to make a dent in the bill. The majority of that bill will be incurred either way.
Food, credit card discounts and delivery driver reimbursements are the only truly variable costs I can think of in this business. Even labor is very lumpy, and if you have no sales you’re still going to incur some labor costs. Those base labor costs should really be considered fixed. That’s exactly why it’s correct to include a store manager’s salary as a fixed cost, and not as a percentage of labor.