noun, verbal noun, の adjective
Divide that price and pull it apart. You only have to pay for one part! What a discount.
The readings are the ones you learned with the kanji. き from ひき kind of just gets stuffed into the 引 and hidden away like that strange collection of fingernails you have hidden in your closet drawer inside of a 35mm film container. Also remember that the reading gets changed to びき here because of that pesky rendaku.
I'm sure it had a 20% discount price tag on it.
I’ll set about adding a discount coupon to the website.