Running counter

I was trying to set up a system where if I put in a name and the number there were, That I could keep a running total of how many I have. For instance:
I put in:
Name: Number:
Thing 1
Other Thing 2
Thing 3

and in another tab it shows:

Name: Number:
Thing 4
Other Thing 3

and it would continue to add them up as I add more to the list.
How would I program something like that?

My actual list keeps getting added to, and my main problem was making it so that any new entries were automatically added to the right totals.

I would opt for creating a dynamic named range for the entire data set and use this named range as the source for a Pivot Table. Use the Pivot Table to create the totals.

Because the PT source is a dynamic named range you would only need to right-click the Pivot Table and choose refresh to update it and even this part can be easily automated with simple VBA code.