This small machine language calculator is for the Commodore 128 and only runs in 80 column mode.

Note - This program needs to be loaded using DLOAD instead of the standard LOAD.

Basic Budget 128 by Granger the Ranger (seriously).  If this is what it takes to get your finances back into shape, by all means,  use it!

Calc 128 is a fancy shmancy calulator for the Commodore 128.

Calculator 128 is a simple BASIC program for the Commodore 128 in 80 column mode that emulates an accountants calculator.  Instead of just showing you the result of your math, it keeps track of your entries and totals with an option to print them out for future review.

Checkbook 128 by Colin Lavoie is an 80 column Commodore 128 program to keep track of checks and balances for your checkbook.  Documentation is included on the disk image.

Interest Calculator 128 is a simple but handy application for calculating the interest or payments on things like house mortgage, car loan, CD interest returns, or even just interest on a savings account.

PERSONAL CHECKING 128 by W.J. Brier (1986) for the Commodore 128 in 80 column mode is a full-featured program that can supplement or replace the conventional checkbook. All of the usual transactions that are recorded in a regular checkbook are  supported in this program. PERSONAL CHECKING 128 can print checks, maintain a file of frequently used payees and check memos, and reconcile or balance the account. Unlike a conventional checkbook, you are not hampered by mathematical errors or careless record keeping. Entries can be quickly and easily located using a variety of searches.

Note - the date format is a bit screwy but can be found in the docs that are included on the disk.