The Time of Battle pack expected value

Is a The Time of Battle booster pack worth opening? Expected value $1.28 per pack against a $8.45 pack price, from live card prices and pull rates.

Expected value per pack: $1.28
Booster pack price: $8.45
On average a pack is worth more kept sealed.
Packs per box: 24
Chase cards with live prices: 12
Chance a pack contains no chase card: 63.9%

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