Adobe Acrobrat Web PDF Catalog/ with List Price x Multiplier

Our company has a 94 page product catalog that contains several hundred parts. We need our web pdf catalog to be able to be used as a price list. This would entail assigning/labeling each product with a list price. The list price must be a field next to each part but cannot be visible to the customer. Each customer is given a multiplier between .392 and .67. I would like the customer to be able to enter their multiplier (example .368) on the first page and apply it to all products on pages 6-71 and apply a separate multiplier to all parts on pages 74-86. This seems as simple as creating a field with a basic multiplication formulas in Acrobat. If any one has any suggestions on the best way to do this please provide your input, Also any additional features that may be advantageous.