It follows the same format as Myra's Wilderness Faire and Myra's Forest Caravan, but she buys different items here.
Below is an alphabetical list of prices at Myra's Potions and Perfumes...
Item = Price per item sold, total xp per sell
dragonwing perfume = 880 gold per perfume bottle, 39xp per sell
dragonwing potion = 420 gold per potion, 38 xp per sell
enchanted nectar = 82 gold, 41xp
everlasting bubbles = 2000 gold, 190xp
fizzy apple juice = 770 gold, 42xp
fizzy blueberry juice = 2400 gold, 42xp
fizzy lavender nectar = 1100 gold, 43xp
iridescent potion = 2900 gold, 205xp
jasmine perfume = 1500 gold, 40xp
lavender = 17 gold, 43xp
lavender perfume = 390 gold, 43xp
lucky clover potion = 1200 gold, 205xp
magical fizzy lemonade = 11200 gold, 235xp
rose perfume = 340 gold, 39xp
rose petal = 11 gold, 39xp
spellbound perfume = 3400 gold, 225xp
stardust potion = 2800 gold, 190xp
sweet'n'sour potion = 650 gold, 38xp
true blue potion = 370 gold, 38xp