With around 45 million ad-supported free users and 15 million premium users, who pay $9.99/month, you would think that Spotify is rolling in cash right now. However, due to the fact that it has to fork over around 70% of its revenue in royalties, Spotify is actually losing cash and is relying on raising funds to continue operating. Don’t worry though, the Swedish company just raised a whopping $400 million in funding, with a valuation of $8.4 billion.