Agree the "up" could have been omitted and the sentence and the message still remain clear but I'm sure its a recognised verb for the task of putting price tags / labels on items prior to sale.
e.g. "I'm busy pricing up the new stock" - anyone else, or am I out on my own with this?
I've just finished a stint at PDSA head office (IT projects) and during my time had to roll out new PC's to all the ~150 retail (charity) shops.
Did a couple of visits to "see the coal face" and most of the people are really dedicated to the cause [unlikely to be scroats]
However, the shop PC...