### Dear World,

Mar. 12th, 2008 12:11 pm*When you're multiplying a series of numbers, it doesn't matter in what order you do it. I will show you.*

**It is the same thing.**Let's say your discount is 50/10/10. That's a 59.5% discount; in other words, you pay 40.5% of the list price. Let's say you're buying something that lists for $753.00, and the custom modifications add 15% to the list price. Let's apply your discount first:

x

__.405__

$304.965

Now, let's apply the upcharge:

x

__1.15__

$350.70975, which we can round up to $350.71.

But wait! What if the upcharge is to the list price, not your cost?

x

__1.15__

$865.95

x

__.405__

$350.70975, which we can round up to $350.71.

This has been your business math lesson for the day. Go forth and conquer!