Announcement of Price Increase

Dear

Due to the increase in raw material costs, we must
unfortunately raise the cost of our merchandise to you.

We have avoided raising our prices for as long as
possible, but we can no longer prolong the inevitable.
We have enclosed our new price list for your review which
goes into effect on [date] [...]

Announcement of Catalog Price Reductions

Dear

This is my favorite kind of letter. How many letters have
I had to write over the years advising you of a price
increase? Why, you ask, am I so happy? Read on.

This is to advise you that, for a limited period of time,
we are reducing prices on certain items in our [...]