Properties and IPOs

How would i make it so that if I have an unspecified property and everytime I lose a value equal to 1% of the unspecified properties’ total property value I go back one frame on my ipo that is defaultly set to frame 100 and will go back 1 frame for each 1% that my property value goes down… How would I accomplish this?

No need to repsond to this… Already found out how to do it.

Than add a [solved] to the title, by editing the first post.
By the way others might be interested in your solution as well.

Thanks
Monster