Arithmetic calculations before sending a command

[dmnr infn via Tech-talk <tech-talk@aps.anl.gov>]

Hi everyone,

I have a DB with protocol in this manner:

record (ao, "RF:Setth_a0")
{
    field (DESC, "Setting threshold accelerator")
    field (DTYP, "stream")
    field (OUT,  "@MDO.proto setth_a0 $(PORT)")
    field (DRVL, "0")
    field (DRVH, "11230")
    field (LOPR, "0")
    field (HOPR, "11230")
    field (PREC, "0")
}

setth_a0 {
    out "SET VOLT %.0f";
}

With CS Studio I have a spinner associated to this PV, but when the user want send a value like 100 I want to send 10 to the device. How can I do this calculation before sending the value?

I tried SET VOLT (%.0f/10) but it doesn't work.

Thank you.