I had heard £300 to £350 per deer on quota was the FC target zone.
The FC up my way conduct all the keeping pest control in house. They maintain a larder locally and sell to the public direct from the door. Prices are so low I doubt if they clear £60 or £70 per beast, depending on weight.
Despite knowing the guys I don't buy from them preferring a beast from the hill proper (rather than a forest stowaway thats snuck in under the wire), and selected for good condition. I pay a little more because the sort of quality I'm after isn't guaranteed at the forestry larder where as my pal will call when he has something that fits the bill for me.