N = x*.14 + y*.30 + z*.56<br><br>The fraction that is x is <br><br>x*.14/N<br><br>and the percentage is 100 times this.<br><br> -- Bob<br><br><br><div class="gmail_quote">On Wed, Nov 4, 2009 at 8:48 AM, Adam Tauno Williams <span dir="ltr"><<a href="mailto:awilliam@whitemice.org">awilliam@whitemice.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">So maybe a bit off topic, but I know we have people here you love to<br>
argue about such things.<br>
<br>
I have three types of equipment: X, Y, & Z.<br>
Given $1.00 I know that in a year a single type X will typically consume<br>
14% of that $1, type Y 30%, and type Z 56%. So if I have x Xs, y Ys,<br>
and z Zs how do I calculate what percentage of the maintenance budget of<br>
N will typically be consumed by type X, Y, and Z?<br>
<br>
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