Nutrabaits and mainline etc is still expensive tbh. There is a lot more choice nowadays thankfully, and a lot more info and ingredients available. But regardless to turn a profit at £3 a kilo and covering costs etc. It's not going to be decent. I've been learning lots lately and am trying to work out all my own mixes, for a decent balanced food base mix I think I am looking at around £4/5 a kilo if I buy 50kg worth of ingredients so I can save a bit and still make a good bait. But I've got to roll it all myself. That's the payoff really.