It is hard to say. The concentration of you poorman's nitric plays a big part in how much metals will dissolve. Also what metals are involved.
The poorman's work around can be calculated similar to real nitric, but the variables can seldom be exactly the same. Even what chemicals you used to make it from can change how it works. This is where hands on work comes into play. You need some ideas of what to watch for in the reactions as well. It works very close to real nitric but it does have some percularities. A few small experiments can help guide you but I wouldn't do large lots until I had done 5-10 small trial runs.
The poorman's work around can be calculated similar to real nitric, but the variables can seldom be exactly the same. Even what chemicals you used to make it from can change how it works. This is where hands on work comes into play. You need some ideas of what to watch for in the reactions as well. It works very close to real nitric but it does have some percularities. A few small experiments can help guide you but I wouldn't do large lots until I had done 5-10 small trial runs.