"A store buys an item for $x and sells it for $y. Write expressions for the markup and the % of the markup" I need some quick help. I don't really understand this.

Question

tkhunny · Answer

"Markup" is a bit of a problem without some explanation.  It can refer to the wholesale price or the retail price.  The AMOUNT of markup is always the Retail Price less the Wholesale Price.  This is $y - $x = M = Markup Amount

% Markup is a different animal.

Wholesale %Markup = M/$x and has no limit.
Retail %Markup = M/$y and cannot exceed 100%.

You need a better question, so we can tell which kind we're talking about.

anonymous · Answer

I'm pretty sure @tkhunny that I'm talking about  Retail %Markup if that helps

anonymous · Answer

@tkhunny It's the percent of markup * store's cost...

tkhunny · Answer

It matters not what you mean.  I explained both.