Hope I'll reply to the correct list in my second attempt (for some reason I
think it may matter for whoever asked the question)...

>Sorry, just some further questions:
>
>What do you mean by 1,20 hours? 1 hour 20 minutes or 1 hour 12 minutes?

And exactly what do you mean by "Multiply WORKING_HOURS * QUANTITY show me
some incredible wrong results." Finally, what version of IB/FB are you using?

>
>Set