Depends on how they do their accounts really, they could be saying that the profit made on the player's book value was 72m eg they had him on their balance sheet as an asset worth 33m, which would fit in with the contract he was on. It could be a net profit on total transactions on the asset eg fee received less buying price (800k) less wages etc. I'll tell you one thing though, there hasn't been an exchange rate of 1:1.65 between Sterling and Euro in their existence so it's not the agent fee of £20m and if Juve had been paying the agent fee the transfer fee would have been reported as £72m by the rag sycophants in the media. We'll find out on the spike in costs when the rags release their full accounts for this season but to be honest, I think you're well off target here.
On exchange rates at the time of transfer £20m would have been about €23.5m, so if you were right then that Juve statement would have stated €81.5m as the economic benefit.