I forgot to difine type of variables:

PCR is DOUBLE PRECISION
PC is NUMERIC(18,2)
RABAT_PROC is DOUBLE PRECISION

> How are PC and RABAT_PROC defined?

Original message:

> I founded a little problem with evaluation of this formula in procedure
> or trigger:

> PC = 109.87
> RABAT_PROC = 5


> 1. case:
> PCR = PC - RABAT_PROC * PC / 100;  Result for PCR is 104.291 (OK)

> 2. case:
> PCR = PC - RABAT_PROC * (PC / 100);  Result for PCR is 109.33 (Bad)

> 3. case:
> PCR = PC - (RABAT_PROC * PC) / 100;  Result for PCR is 109.33 too
> (Bad)

> My version of Firebird server is 1.52. I try with both of classical and
> super server.


> With Best Regards
> Miki Avramovic