Sure thing.

To calculate hidden carbs:

1. Click "Low Carb Tools"
2. Scroll to the second tool and click the title "Hidden Carbs Ispector" or the picture.
3. On the entry for type the items for your label in the corresponding fields:

Example:

Calories: 83 calories
Fat: 6 grams
Protein: 3 grams
Carbs: 2 grams

In the accuracy field, select "Nuts and Seed Products"

4. Click "Calculate"

5 Check the result:

It will list:

Carbohydrates Factor
Protein Factor
Fat Factor

These are the factors used in the calculation from the USDA labs

And the important part:

Actual carb count: 5.50 g
Difference by weight: 3.50 g

Which means: The manufacturer said the have 2 grams of carbs per portion, but in reality there are 5.5 grams. A difference of 3.5 grams from the true count.

Wa'il