You asked: Can you make a quick tool to help me split the bill? Make it look like an accounting ledger.

AccountDinner, split by the table
Party4 people
Tip rate20%

The dinner bill, entered and split

Enter the bill, pick a tip, and set how many are paying. Turn on uneven shares if someone ordered more. Every column adds up to the cent.

Entries Folio 1

$
People paying
4
Tip
%

Summary Totals

Tip20% of the bill 
Total to paybill plus tip 
Each personsplit evenly 

Who pays what By person

PersonBillTipPays
Total

How the cents work. Each share is worked out in whole cents. Any leftover cent goes to the people with the largest remainders, so the column always adds up to the total. With rounding on, the extra goes to the tip.