Field help (LIKQTYCFG) 

The link quantity specifies the number of components required for the basic quantity of the parent product.
It is entered in a variable format (fluctuating number of decimals).
For a management unit in percentage, the sum of the link quantities must be equal to 100.
When the quantity is the result of a calculation, the user has to enter a null quantity and not forget to individually define the field LIKQTY.