Final answer:
The upcharge for center cut or small end ribs varies by establishment and is typically found on the menu or by asking the provider directly.
Step-by-step explanation:
The upcharge for center cut or small end ribs when ordering a half or whole slab depends on the restaurant or meat provider's pricing policy. It's common that an upcharge is applied to certain cuts of meat due to their higher quality or demand. To find the exact upcharge, one would typically look at the menu or price list of the establishment or inquire directly with the provider for the most accurate information. Examples of such upcharges could be a few dollars extra per half slab or proportionally more for a whole slab, but this can vary widely between different places.