how to calculate an integer in a PSP expression

hi,

I need to calculate an integer but I can't find any suitable function.

example of expected results:

Before, after Net Price

0.1 => 0

0.9 => 0

the round() function will obviously not work

the Integer() escript function is not supported.

or maybe there is a vanilla business service that could do that?

does anyone has a suggestion?

Thanks,

Matthieu

PS: We won't be allowed to use scripting here!