Wiktionary
price up
vb. (context transitive English) To increase the price of
Usage examples of "price up".
They followed Miss Price up the stairs, down the passage, and out through the open door into the garden, where the air was sweet with the smell of sun-wanned earth.
But, feel sorry for him as I might, I had no intention of telling him in advance in which direction my interest lay: he was well into the stage of trotting off with the news to the vendor and asking a commission for bidding the price up high.