Price Of Mary Magdalene's Perfume

Interesting article about prices for 30 pieces of silver for Judas' betrayal and "300 silver pieces or more" for the perfume

https://hermeneutics.stackexchange.com/questions/60500/marys-expensive-perfume-vs-judas-30-pieces-of-silver

We aren't told what type of silver coin was used to pay Judas - let's consider 4 options:

A day's wages were roughly 1 drachma (~4.3 grams of silver)

Tyrian shekel: 14 grams = 3.26 day's wages. Multiplied by 30 shekels = 98 day's wages

Antioch stater: 15 grams = 3.49 day's wages. Multiplied by 30 staters = 105 day's wages

Ptolemaic tetradrachm: 13.5 grams = 3.14 day's wages. Multiplied by 30 tetradrachms = 94 day's wages

Athenian tetradrachm: 17.2 grams = 4 day's wages. Multiplied by 30 tetradrachms = 120 day's wages

Even if Judas was paid in the most valuable of the four, the Athenian tetradrachm, his fee for betrayal was only about a third the value of the perfume, which would have been worth:

~91 pieces of the same silver coin if we use 365 day's wages
75 pieces of the same silver coin if we use 300 day's wages (implied but not explicitly stated by the Greek, indicating "300 denarii")