I didn't personally get them but I believe it was a straight conversion of the cost. Take this years price x the exchange rate then multiply by 10 and divide by 95 (79x1.33/10*95) should give you a pretty close goal to shoot for.
I got them, one adult and one child for Aug 30 (I'm not sure what the cost in USD would be though?) and it was 2500 Airmiles for the tickets. I think it was $85 & $80 (plus tax).
I got them as well. Two adults for Monday, September 2nd and cost 2,400 air miles. My husband was charged the same for the same ticket types and dates.
Out-of-pocket was going to be $79 US plus tax per ticket.