- Hello, i'm starting to using the launch custom calculation edition. I have the software open lab CDS. I'vecreated one custom calculation wich show me the average of the concentration, and this custom calculation i can see it in data análisis in the results. I would like to add this custom calculation in my report . I have tried to do it, but I can't get it. I'm going to add in this email the formula Wich i have used in de launch custom calculation editionHello, i'm starting to using the launch custom calculation edition. I have the software open lab CDS. I'vecreated one custom calculation wich show me the average of the concentration, and this custom calculation i can see it in data análisis in the results. I would like to add this custom calculation in my report . I have tried to do it, but I can't get it. I'm going to add in this email the formula Wich i have used in de launch custom calculation edition