# The theory of relativity, part two

In part one of this subject, we discussed the age-old question, "Is my food cost too high?" The first step in determining if the answer was "yes" or "no" was to compare your restaurant's performance to industry averages calculated by the National Restaurant Association.

While you end up with some interesting data, it doesn't exactly answer our question. First, survey data, even statistically significant data, requires only a small sampling of the thousands of restaurants in the U.S. Second, national averages are only averages. That means there are many restaurants with higher food costs, and many with lower food costs, and even a few on the extreme ends of the spectrum.

Also, whether or not your food cost is too high is very relative to your style of operation and the type of food you serve. Therefore, we're better off determining if your food cost is in line. To find out, you need to calculate a Theoretical Food Cost and compare it to your Actual Food Cost.

To do this, you need:

• The retail/menu price of each item
• The cost of each item, including any "give-away" (garnish, bread, condiments, etc.)
• The total number sold of each item

First, calculate your Theoretical Food Cost %

Second, calculate your Actual Food Cost %

Finally, compare the two. If they vary by more than two percentage points, then you may have a problem with waste, incorrectly recorded comps, unrecorded employee meals, or theft. Tighter controls can bring your actual food cost closer to what it should be.

If they're within two percentage points of each other, then you can safely say that your food cost is in line.