That should be something around EUR 630.
A new Cypres costs around EUR 957, that is EUR 757.10 net, plus EUR 145.90 for the check, plus EUR 54.00 for the battery. It lasts 12 years, thus looses EUR 63.09 per year (757.10:12) = EUR 189.27 for the three years; the current battery is good for another year, thus -EUR 27 (provided you don't do more than 500 jumps with the current battery); maintenance is due next year, thus -EUR 109.44 (145.90:4*3). Now do the math and you arrive at EUR 631.28.
Hope that helps.
Regards
Dietmar "Whatever you are, be a good one." (Abraham Lincoln)