A well spotted example of our shops deceptive ways!
Hey! You know when you a mars bar (just for example) ...
The mars bar is advertised as being "2 pence off normal price"
I suspect that what they do is make the mars bar smaller...taking 5 pence worth of chocolate away?...but only take 2 pence off the price?
What I'm trying to say here is perhaps we shouldn't get too excited when the say the price has been cut....has the quantity of what your getting been cut somewhat more significantly..?
What I've described here might just be the oldest trick in the book!