how can I change prices?

I have a Sharp ER-a530A cash register. I need to change prices. How do I go about this?
Gayle, February 2020


done
Have a look at page 115 on the following manual:

http://www.greatlakesbusinessequipment.com/manuals/Sharp%20ER%20A520%20530%20user%20manuals/ERA520AA530A_MIE10.pdf

Rupert, February 2020
link Click here to see other fixes for Sharp.