An oz can be split into "halves", "quarters" (vicar's daughter), "eighths" (a Henery - so called after Henery VIII)and "sixteenths" (a Louie - after Louie XVI). An Oz may even be sold in grams.
Goodprice on a half = £45. Bad price = £55.
Goodprice for a quarter = £20. Bad price = £30.
Goob price on a eighth = £8. Bad price = £15.
Goodprice on a teenth = £5. Bad price = £7.50p.
Price for a gram = £5.
MAN - thats a lot of skunk! how much for that 9bar