How do I scale an object with its Y value between 2 points

I've been using a formula to scale an object with its Y value but I would like to know how to do it for a specific area on the game screen.

The only time I want the object to scale is when it moves from a Y value 200 to a Y value 450. I would like to scale my object up from its initial scale of 0.3 (set On Created), to a scale of 2.

I have made an example for you https://drive.google.com/open?id=0B_ZRh ... EpxMVc3bjg

I know how it works, but I struggle with explaining. I hope one can figure it out or others can explain it to you :S

ikke2902 Thank you very much for taking the time to do that. It works really well and I am sure this will come in handy for several people here.

I just have one other question - do you know how to scale the same object based on its distance to a Player object?

So when its position equals the player objects its scale will be 2 and when its position is say 450 pixels away its scale is 0.3.

Here it is, it looks quite beautifull <img src="{SMILIES_PATH}/icon_e_biggrin.gif" alt=":D" title="Very Happy">

https://drive.google.com/open?id=0B_ZRh ... FdndWhFRWc

ikke2902 Thank you again ikke. It is that unlerp line of code that I am not understanding. I'll have to read up on it a bit more.