Back To the future + 11 Bonus Cards  ,99 in total 

the 11 make up a poster  Of Marty Mcfly when turned over See picture

Sorry Will Definitely Not split 

Some Sellers in the US and UK sell these individually  from £1.49-£4.99 Each Card 

Some don't even have the 1-11 Bonus card

+ 1 Empty Wrapper 

Works out around average £1.35  per card