STORY: From bitcoin on the brink, to why Kellogg is doing the splits, this is the Week in Numbers. First up…

Around $20,000 is the level bitcoin has been flirting with all week, having gone significantly lower last weekend. That has some traders jittery, as they say a move below that level could trigger a new plunge. The latest wobbles have been caused by signs that more big crypto players face financial trouble.

3 is the magic number for cereal-maker Kellogg. It surprised investors with a plan to split into a trio of standalone firms. By the far the biggest of the three will be its snacks business, which makes nibbles like Pringles potato chips.

$33.50 per share is JetBlue’s improved offer for Spirit Airlines. That’s a bid to convince the budget carrier to accept its offer over that of rival Frontier Airlines. The winner of this bidding war will get to create the fifth-largest U.S. carrier.

$22 billion could be the value of Toshiba in a deal to take it private. Reuters sources say that’s the price bidders have put on the troubled Japanese conglomerate. U.S fund Bain Capital is said to be among the most aggressive bidders.

And $2.9 billion is the value of some energy bars. That’s how much Mondelez will pay to acquire Clif Bar & Company. The Toblerone and Oreos maker wants to build a $1 billion global snack bar franchise for itself.