Their #1 moneymaker is indeed the murdering of unborn children.
They came up with that "3%" lie by literally counting every move they make as an individual instance of providing a "Service". So, if you checked a woman in, count 1; gave her a band-aid for a cut, count 2; handed out aspirin for a headache, count another one, or perhaps if they gave her 2 aspirin that counted as 2 more; and so on.
Given that they refuse to allow women to see the ultrasounds of their babies, because most end up changing their minds, is proof that they will use any deception in order to murder babies, and make themselves rich in the process.