Opening Unbroken Bonds 3 Pack Blister [Typhlosion] returns about $68.91 in card value against its $246.25 price — roughly $0.28 back per dollar spent. On current prices, you lose money on average by opening it.
See every card and pull rate in SM - Unbroken Bonds
How expected value is calculated — card value only, from published pull rates and daily market prices.