Cadbury are reducing the size of their chocolate blocks again.

A couple years ago they quietly reduced it from 250gms to 200gms to avoid raising the price (inflation hits everything, so either the price rises or the size is reduced to maintain a price-point)... then they did a big promotional campaign to increase the size from 200gms to 220gms to make out it was a bonus increase.
Now they are dropping it back to the 200gms again to avoid raising the wholesale/retail price, but where is it going to stop?
At some point inflation must take over and products can't shrink any further.
At that point some Brands have been known to introduce a "new" larger size at a higher price that is the same size as what they used to release years ago, and phase out the "old" smaller size.
With Brands like Cadbury though, people are buying it because of the Brand not the price, so this will probably not make much difference to their sales. If people were buying chocolate because of price instead of taste, there are other brands including generics that are cheaper.

(the one good thing is that when it is a small reduction, it cuts a little junk and calories from the diet... but if it shrinks too much, people will buy a second and end up eating more junk)