AFTER CALIBRATING NEW MACPRO,BATTERY % IS LOWER

Hi ,my son has recently bought a new macbookpro, after a full charged battery at 100% ,the battery said (in time) 3hours 49 mins,then within 2 mins,dropped to 3hours 4mins,then was draining down ,So he decided after reading on this forum & checking with Applecare tech guys to Recalibrate the battery ,so he used an app called COCONUT BATTERY to keep a record of the battery datails & strangely enough before he calibrated it,at 100% it said 5774mAh at 2 cycles then after he properly calibrated the battery it has dropped to 5634mAh & it says fully charged but wont go to 100% it reaches 99% on a full charge?
Can anyone help us out with any advice why a brand new MBPro battery is behaving so odd & after only 4 cycles ,it says fully charged at only 99% & the mAh has dropped quite a lot.
THANKYOU

it says fully charged but wont go to 100% it reaches 99% on a full charge?
And it may not:
http://support.apple.com/kb/TS1909

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