Harry Potter - Muggle Money

399 cents = 409 knuts (about 1 cent per knut)

Dragon Liver is 17 Sickles an ounce

17 Sickles = 17 x 29 knuts = 493 knuts

399 x

409 493

399 x 493 = 409x

x = (399 x 493) ÷ 409 about 481 or

$4.81 per ounce

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