Can i change the scale % in to MM or someting ?

[basbas2014]

Hi All,

I have a question, 

I work a lot with scale model cars and trains in 3D.
Now do i have some train models what i need to scale down from scale 1/27 to 1/32.
But i can only scale it down in percent, is there a way that i can scale it in down with number in MM ?
I,m not good in calculate it back with a calculator, i have no clue how i can do that. 

Hope someone can help me with it.

[CAMedeck]

When I'm feeling lazy and don't want to figure out the math for scaling, I cheat.

Take your 1/27 scale model, scale it up by 2700% (27 times, making it actual size).  Now you need to scale it down by 1/32.  Math, right?  Let Max do it.  Click in the scale parameter box and press CTRL N. This opens an onboard calculator, where you'll type in 1/32.  It will calculate it for you and insert the result.