I cannot figure to an accurate level as one must take the grain weight of the shaft/nock/insert/broadhead/and fletchings to get an accurate weight of the arrow.
By just taking the weight of the shaft with 5 inch vanes and no broadhead figured at 297 fps for the 2016 and a SWAG on your arrow speed for a 2216 you could be gaining 12-17 lbs of KE.
Really tough to figure taking guesses. Try the sie I'm furnishing after you get all the info. Hope it helps LOL.
http://home.att.net/~sajackson/ke.html
"Semper Fi"