How many calories would i burn at the gym in an hour??

[stali28]

*firstly i go on the rower for two mins warm up
*then the chest press 15 light weight reps + 15 heavy weight reps
*90 degree leg press [15 light+15 heavy reps]
*Lat pulldown [15 light+15 heavy reps]
*supported row [15 light+15 heavy reps]
*2x hovers [i hold it for 10 seconds]
*2(each side)x side hovers [i hold for 5 seconds]
*then 10 mins on the bike above 65 [level 1 + 2]
*then 20 mins on the tredmill, at speed/level 5
And all up it takes an hour non-stop, and i'm curious how many calories i'd burn? and how could i increase it, and burn more calories?
[btw. i've been going for two months because i'm trying to loose weight, as i'm 15 and weight 161 pounds ( four months ago i WAS 181 pounds ..), and for my height 5'6 thats alot! ]
=]