Dubbel Track Kegged

I finally got around to kegging the Dubbel Track Ale this weekend. The original gravity was around 1.065 according to the Northern Brewer website from which I bought the ingredient kit. I'm not sure if it came out to be exactly that as my hydrometer was broken when I brewed the beer, so I'll have to trust Northern Brewer. I purchased a new hydrometer and measured the final gravity to be 1.011. Using the instruction that came with the the hydrometer this indicates that the alcohol content to be approximately 7-7.5% by volume. Using the formula ABV = (OG -FG)*131 that I found on the Beeradvocate.com I narrowed it down to 7.074%. I hope that this doesn't indicate that the beer didn't fully ferment because the ABV was supposed to be around 7.5%. I tasted it after I kegged it and it was pretty good, so I guess that it all that really matters.