Définition
In a group of companies, the link that exists between each of the companies that is held (B, C, etc) and the head of the group (A) is determined by an actual control rate.
Remarque
This rate is the result of a complex calculation on the basis of the nominal control rates of those direct shareholders of the company that is owned
who are controlled by the head of the group (A).
For example, if A has a 100 % participation in B and of 50 % in C and what B has a 30 % participation in C, then the rate of real control of A on C is 80 % (= 50 + 30).