You start with 100 apples. You take 40% of them away, you have 60 apples. You want 100 apples again. If you add 40%, that's 40% of 60 apples, which is 24 apples. You want 40 apples over your 60 apples, which is 2/3, which is 66.66667%. After you slow down the footage, the reference frame changes with it.

JC Boulay

Technical Director

Audio Z

Montreal, Canada

http://www.audioz.com