I am no retail expert, but nothing in those figures begins to make sense!
Let me let you into a secret - a few retailers, a very few, actually manage to make 5% net profit. That is REAL net profit, actual dividends paid to those happy campers who own the damn things.
There seems to be some species of retail-mad-cow-disease in the current owner's figures in which mark-up and gross profit are getting conflated. He claims 30% (a utopian figure, but hey, let's go with that one!) overall and across-the-board mark-up and 30% of 380 is 114. Minus wages is 80. Now we come to electricity at c.a. £700 p.m. so that is £8.4k so now we are at roughly 70k. That is 70k without ANY other costs! Rates? Heating? Repairs? Shrinkage of stock (i.e. stealing, spoiling, breakages, etc.)? Legal and accounting fees? Insurance?
And nowhere is there mention of rent at £1k p.m. Your incidentals will be AT LEAST £20k and add another 12k for rent and now we recalculate the mark-up at a realistic 20% overall and 5% net profit starts to look like an almost unattainable dream!
Sometimes the back of a sensible envelope can be your best weapon!
Tip number one - he ain't downsizing, he's getting rid of a turkey!
Tip number two - forget the lottery tickets for the reasons mentioned.
Tip number three - you have to reapply for an alcohol license.
Tip number four - TUPE applies, so you're stuck with the present staff.
My 30 cents worth - if you want to move to wherever it is, you can buy the building I suppose, but the shop does not seem to be a going concern (assuming of course that my envelope is not broken!)