Even just the properties, we know for definite he was paying for his place in Chalfont, Cheryl's, his penthouse in London, and the place in Florida, all alongside regular hotel stays, most likely in top suites, rented villas etc.
That's a substantial amount per month, especially as he'd been paying the first three for some time.
Add onto that the speculation he's paid for properties for his parents and siblings, that's a hefty amount of outgoings, before anything else is taken into account.
Still the amount left to Bear is nothing to be sniffed at, especially if it's invested wisely.
However I'm sure he'd likely give it all up if it meant having his father back, bless him.