calculation / formula

Savatage wrote:

Kareltje wrote:

hi guys,

I would like to add the next calculation in a report.
costprice minus 12%
this calculation is for one supplier.

please some advice

not sure what you're asking..how about
answer := (costprice - (costprice*.12));

why reduce the cost?
anyway a better method is instead of hard code the percentage you could add a field the the vendor card called "Cost Discount" where it can be set for each vendor differently & incase another vendor requires a discount then the field is easily filled.

answer := (costprice - (costprice * "Cost discount"));