[DonRotolo]

We calculated the number of meatballs one of our team grandparents had made in her lifetime. Came up with over a quarter-million. This was at the Mentors table...

For your calculation: You'd want to be a lot more exact when estimating the size of a billion based on a measurement of ten. That's how many orders of magnitude different? Better to be within 3 or 4 orders, so maybe a thousand, or at least a hundred.

Or call Pizza Hut, ask how big the box is and how many are in the box.