sum function with a break point

Hi Guys
I have a forumula I need to figure out.

Lets say I charge a customer for the amount of widgets he takes per month. He gets charged $125 per widget up to 90 widgets. Then for each widget after that, he gets charged a reduced rate of $55 per widget.

Is it possible to have this all in one forumula?

HTanks

Hi

Use a lookup formula based on the number of units. Anything up to 90 they get one price, and over that you get another....

rylo