I might have been partly responsible for this, or at least I assume so from your message. If so, the same thought still applies – at least in my opinion. Puuilo has the same discount store elements and items as Tokmanni, but there is a lot of difference in the sales mix between the two.
But where could Tokmanni learn from Puuilo? In my opinion, in many things, but bringing up a few generic points, here are a few observations:
1/ Puuilo sells fast-moving goods with a good margin. This works really well for Puuilo’s current situation, i.e., for a growth company! (Puuilo 50 stores vs Tokmanni 200 stores, in Finland).
2/ Puuilo’s item counts are remarkably low compared to Tokmanni. This works for Puuilo. Should Tokmanni drastically reduce its item counts and seek profitability through that? Don’t Puuilo and Normal operate this way? And as I understand it, DollarStore also operates with a smaller item count and is damn cost-effective? 
3/ Tokmanni’s and Puuilo’s growth? Where does the growth company Puuilo seek growth from? Should it not increase item counts like Tokmanni, should it not expand abroad like Tokmanni? Should it not increase the number of physical stores like Tokmanni? I don’t know, it’s a difficult case.
To put it populistically, one could say it’s easy to grow from a few stores to 40-50 stores, but to grow to 200 stores, considering the extra “couple of hundred stores” abroad, that’s not easy. Tokmanni probably grew in the same proportion as Puuilo back in the day, from a few tens to hundreds…
Well, the idea was to bring up things from different perspectives; it’s not easy, and I especially apologize to @Kivikko – by no means is it my intention that someone feels my writing is such that they have to remove their own post. My sincere apologies!
And still, and nowadays, I have a fairly large holding in Puuilo – it just keeps growing! (great company!!)
and nowadays a much smaller holding in Tokmanni, due to damn poor profitability.. (I still go and buy the good club offers!!, it really has cheap stuff – I don’t understand why people say it’s expensive, it’s actually cheap when you buy the cheap stuff for home – I don’t understand!) 
PS. Could someone tell me an anecdote that puzzles me? People keep repeating that no one visits Tokmanni, all stores are empty… But then when you look at 01-06/2024 vs 01-06/2025, revenue is +3%. Doesn’t that mean that buyers, i.e., customers, are 3% more than in the corresponding period last year? How does this mean that fewer people are at the checkouts than last year?