Wonder,
Per point methods are usually taught in an estimating class - BUT - then the cost per point is something usually settled on per individual contractor based on a LOT of estimates and CAREFULLY RECORDED jobs.

IOW, lemme see, how much did that service cost me? The day you wire the service, make certain you record every piece of material. How much did the rough in cost? again based on your jobsite records.

In that way, every contractor tailors his per point method to the crews abilities, and talents for the geographical area.

You can get a lot of reference material, maybe through Bill here, or at www.constructionbook.com

and maybe at www.amazon.com
but again, they have to be tailored to you and yours where you are, if you take one a guy uses in Colorado, and apply it unilaterally to you situation in WV, SOMEBODY'S gonna lose his shirt.

Now for the West Virginia jokes................ :GRIN: