MOV Volume Level

When I import recordings from my Vulkano device into iTunes, the videos are 20-30% louder than all my other videos. I do know how to adjust the volume in a MOV file, so that's not my question. My question is:

Can I view somewhere the current embedded default volume level of a video so I know exactly how much I need to adjust the volume?

For example, can I...

1. Open an iTunes Store video and a Vulkano video in this mystery app

2. See that according to this mystery app the iTunes video volume is set at "6" but the Vulkano video volume is set at "8"

3. Use Quicktime (or in my case probably Subler) to adjust the volume of the Vulkano video until it is at "6" according to the mystery app

Thanks!