Add a custom calculations

Add a custom calculations
Pochagnol
Pourcentage du budget R&D / ventes
??rating.lastmodif?? 28/02/2015.
Expression:
{Budget R et D|N}/{Production demandée|N}/{Prix de vente des produits|N}*100

You are about to add a custom calculation.
For that purpose, please connect to your Simuland.net account by using the form below.