" the liability of all co-parceners exept karta is limited to their share in the business, and consequently their risk is well defined and precise"

I don't understant- from business studies, chapter 2

“The liability of all co-parceners except Karta is limited to their share in the business, and consequently their risk is well defined and precise”. This statement implies that all the co-parceners (male members of HUF other than Karta) are liable to pay-off the business dues only to the extent of their share in HUF property. Thus, it can be said that the risk and liabilities of the co-parcners are well defined and precise.