(Maitre'D 2005, from Service Pack 1 and later versions of Maitre'D)
We improved the on screen calculator feature to allow the use of the
Multiplication (*) button instead of the percentage (%) button.
For example, if you have 4 bills of $ 5.00, you can use this button
to multiply them together and enter a total amount of $ 20.00, instead
of manually multiplying these amounts before entering their total at the
workstation.
P.O.S. Control / View / Options / Configuration / POS
To make this function available, activate the following option: