Got it, thanks so much this is helpful! 45% comes out to roughly 3.08mm if I'm right.Here is an example of one I just had done in prep for selling my car. Will tell overheat events, launces and wear.
Mine came back 1.2mm. The discard point is 5.6mm so this clutch has 80% life left in it.
1.0 - ((actual mm) / (discard mm)) = clutch life
Assume discard mm is Lamborghini's spec of 5.6mm always.
1.0 - (1.2 / 5.6)
1.0 - (0.21) = 79%
I think I did that right lol. I suppose you can do it backwards to get clutch measurement too, like in my case where I was given 45%.
1.0 - (x/5.6) = 45%
1.0 - (x/5.6) = 0.45
-(x/5.6) = -0.55
x = 3.08mm