why the drop of 5%, page-8

I followed on and off. Will have to wait for one of the pro write ups to clarified what had been said. But some points I think I heard were:
1) can't say how margins are affected, but working to ensure it is positive
2) additional of stores (or numbers) cannot be confirm this year as there will be exits and entries
3) althelica is only a pilot, sales growing week on week, but no material affect on FY17.

So because the answers are vague, I think it won't help the share price one bit as earnings cannot be confirmed how it would be impacted.