$8.7 billion

The size of Donald Trump’s net worth, according to the man himself in a speech announcing his 2016 presidential run Tuesday. As New York Magazine notes, it’s the latest in a long history of figures offered by Trump, Forbes and other news organizations trying to figure out how much exactly “the Donald” is worth.

$4 billion

That’s the expected value of fitness tracker Fitbit for its IPO on Thursday. But with the market getting crowded with high-end competitors (namely: Apple Watch), some investors worry how other pieces of wearable technology will perform over time. The key to Fitbit’s survival may be that it’s not trying to be a full-fledged computer on your wrist. It just wants to be your cheerleader.

$22.7 billion

Speaking of the super rich: that’s the net worth of Saudi Prince Alwaleed bin Talal as calculated by Forbes, who sued the magazine for allegedly underreporting his wealth. Turns out tabulating fortunes is a tricky business, and one that’s extra difficult when salary is almost a “rounding error.”

175,000

That’s how many jobs are supported by the Port of New York and New Jersey, the largest port on the East Coast. Rafael Alvarez, who drives a truck for the National Container Freight in New Jersey, has one of those jobs. He got into trucking because he enjoys driving, but now he spends hours a day waiting to pick up containers from the port. The notorious congestion for truckers has sparked debates over what how to make the port more efficient.

17 million

That’s how many notebooks Moleskine sold last year, according to the New Yorker. Turns out the premium journals have a lot of fans in Silicon Valley, where tech entrepreneurs rely on old fashioned pen-and-paper note-taking, even as they’re working on note-taking apps themselves.