Oh god. This just reminded me of an old boss. He was a general contractor (very large, and very expensive custom homes ground up builds), and I still don’t know how he was still in business, and more importantly, hadn’t been sued into oblivions. Anyhow, he would use and excel spreadsheet to do his estimates. Ok, not ideal, but could work.

At some point I realized what he was doing, and asked why he wasn’t using any formulas or macros to make it all automatic (he was doing the math with a calculator then entering the info). He didn’t know it was possible. He would manually write down, then transfer info from one sheet to another and of course there were tons of errors. I spent a little time making him a whole new one (his idea not mine) with all the bells and whistles. He never fucking used it.