Musk’s net worth has sunk since its November peak of $318 billion, but he nonetheless remains the world’s richest person. (AP Photo/Matt Rourke) ASSOCIATED PRESS The U.S. stock market floundered this week–and the world’s richest person, Elon Musk, is feeling the effects. Musk’s estimated fortune dropped to $245.1 billion this week, plummeting by about $20.3 […]