I am new to excel. I am trying to track over the course of the year, 3 credit
cards and how much I pay per month in interest, payments and the total I owe.
I have a worksheet that is like this:

Jan Feb Mar Apr
Card 1
Total Owed
Pmt
Int

the other 2 cards are listed the same way.

I have a 2nd worksheet that lists the 3 cards and just the total amt owed
for each one. How can I keep this updated so that when I update the 1st
worksheet each month, the 2nd worksheet updates to the latest total amount
owed?