Avery Berkel IM Series User Instructions page 97

98
Serving per container
The number of servings per container is calculated automatically from the serving size
programmed in the PLU and the weight of the product in the container:
total weight in container
serving size in grams
When programming the PLU the serving size in grams must be included in the 20
character text for serving size and the value %%C as the text for servings per container.
The scale looks for a numerical value followed by a g or G in the serving size text and
uses that weight to calculate the number of servings.
Programming Products
6.8 Creating a nutritional panel
IM series User Instructions