Volume after Bounce question

I have a bunch of demos right now but one is much quieter than the rest after bounce. I saw the track volumes, and master volume were similar to the louder bounced songs and so pushed everything up to almost peaking and it still comes out much quieter than the others. Please note the song is louder on Garageband, it just bounces much quieter. I don't know what else to do other than re record everything.

Any ideas? Thanks!