Owners are allowed to put in a certain amount of investment per season. Plus presumably clever accounting.

Red and Blue Army!

If you are interested it is worth listening to the price of football podcast by Kevin Day.
As ASCPFC said you are allowed to invest in infrastructure so £90m for the ground and possibly another £20-30m for the training ground and academy if comparable to us.
You can lose a certain amount each year, £39m over three years in the championship so you can build up big debt over time and still not break FFp.
When you sign a player that transfer fee doesn't all go in that years accounts. So when we bought Beneteke and put him on a five year deal the transfer fee was split across the the five year contract. So £6m added to the accounts over five years not £30m in one year .
It means that effectively, if i've got it right, in the first three years in premier Brighton had a net transfer spend of £240m but that would be spread out over the next few years. They didn't spend as much last summer as the previous few so maybe FFP is begining to bite.

One supporter of hacking argued that without it "you will do away with the courage and pluck of the game, and I will be bound to bring over a lot of Frenchmen who would beat you with a week's practice -Blackheath secretary at first meeting of the F.A