I think you have a valid point, Couple of points I would say, traders, will not pay the advertised price. So the £6.5k profit to MB will probably be more like £4k, Plus then you have to take out of that margin cost of operations also. So Staff, offices, grants, Adaptations etc etc
Now they are supposed to be a charity. So and profit should go back into the operations. the issue is they should be supporting advanced payment. Plus they don’t need to a high level of surplus in the bank.