Complex sentence: Against all the odds, he makes a profit on each, despite the best endeavours of a shady banker, Van Norden, and his daughter, who want to part Percy from his money and his innocent girl-friend, Sally.
Split into simpler sentences: Against all the odds, he makes a profit on each. And this despite the best endeavours of a shady banker, Van Norden and his daughter, to part Percy from his money, or from his innocent girl-friend, Sally.