Definition of the term "TILBUD"

I just verified the price of the textbook

http://www.akademika.no/node/2696709

Mastering CAD/CAM

in the Akademika store. I previously looked at the price tag (which is very unclear) and thought it was about 450kr. Particularly because there is a large sticker saying "TILBUD" ("offer"), and it also says "Tilbud" on the price tag. But what I now have learned is that "TILBUD" can also mean "you get the item at a higher price". I was missing a "1", so the right price is about 1450kr.....