Unit price error

On Aldi Lamb Shanks 860g @ £5.99, how do you get a unit price of £0.35 per 100g? On checking, it looks like you are taking a 2 pack, totalling 860g, as 2 x 860g. That is wrong. Aldi's unit price is £6.97kg which is £0.70 per 100g. You've done the same with a Tesco 2 pack of Lamb Shanks. How many other products are you giving misleading unit prices? Im going to have to check all your comparisons, from now on.