ABSTRACT
A specified part of the contr ibut ion, or a fixed percentage cont r ibu-
t ion rate, may be credited from the members themselves, but for
our purposes only the total amount of contr ibut ions is relevant.
A specified part of the contr ibut ion, or a fixed percentage cont r ibu-
t ion rate, may be credited from the members themselves, but for
our purposes only the total amount of contr ibut ions is relevant.