How Is The Wealth Of A Group People Defined?

                                

Imagine there are families with the Father as the sole breadwinner. Family A have 8 children, a father, and the mother while Family B has two children and the father & mother.

Father A with 10 mouths to feed earns #200,000/mth while Father B with just 4 mouths to feed earns #150,000/mth.

At the end of the day Family A averages #20,000/person/month while Family B averages #37,500/person/month for overall upkeep.

Now here is the big question, which of these two set of people have a better living standard and bragging right regarding the richer family?