I went to Aldi yesterday and I spent £56.81
When I got home I went on www.mysupermarket.com. Not sure if you are familiar with this site. It's for online shopping at Asda, Tesco, Sainsburys etc. you enter all your items then you can see what it would cost at each shop.
So, I entered every item that I had bought at Aldi and this was the result:
Aldi £56.81
Sainsburys £78.41
Asda. £84.09
Tesco. £86.91
I was very surprised that Asda was so high and that Sainsburys was so low 