It calculates the total sale cost including the commission and vat.

Via the Bought it/Sold it buttons, the transaction screens lists each item together with summary totals allowing you to keep track of your total spend as the aution progresses - no more nasty surprises at the end !

When you've finished at the auction the summary should agree with the auction invoice.

Instructions
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1) Enter the auction house commission rate %% (e.g. 15) and
V.A.T. %% rate (e.g. 20) via the menu, settings option.

2) use the keyboard buttons to enter the hammer price.
The total buying cost and sale return will be displayed.
- [C] button will remove the last entered digit
- [Clear] button will reset the hammer price

3) optionally maintain a list of purchases/sales for a
particular auction via the Bought it/Sold it buttons.
You'll be prompted for the lot number.

Clear the history from the menu, Delete History option.

Mail me with suggestions on additional functionality.