Once you have designated the cell in which percentage is as an excel Macro with the keyboard equivalent of command option p. The language is very powerful and I use it to run regressions on 50 mutual funds on a weekly basis. Excel for Mac 2011 works with this and Excel 2011 works with El Capitan so that is where I am stuck. I'm trying to find another user who has figured out what combination of Mac and Excel software will work. Hope this clarifies the issue I'm trying to get help on.