Silly question regarding market fees calculation


Bosstone

 

Posted

Writing an Excel formula to calculate final earnings based upon an initial list price and projected sale price. The math for the fees seems simple, but I'm not as intelligent as I like to think I am , so wanted to make sure the math was right. Can someone confirm/deny? Thanks in advance!

EARNINGS = SALE_PRICE - (SALE_PRICE * .1) + (LIST_PRICE * .05)


Main Character: Ice/Storm/Ice Controller (Justice, 1340 badges)

 

Posted

I can't remember offhand what the actual percentages are, but as a formula that looks correct, with one exception: You either need a set of parentheses that encompasses both the market cuts:

EARNINGS = SALE_PRICE - ((SALE_PRICE * .1) + (LIST_PRICE * .05))

Or change the + to -:

EARNINGS = SALE_PRICE - (SALE_PRICE * .1) - (LIST_PRICE * .05)

Right now what you have will add the list price cut to your earnings instead of subtracting.


De minimis non curat Lex Luthor.

 

Posted

OP, I don't believe that is quite correct.

My understanding is that Sales Fee is 10% of Sale Price, *but* List Fee is included
as part of that (ie, it's essentially refunded).

So,

Assuming a List Price of 1000 and a Sale Price of 5000, your formula looks like
it would calculate Earnings of 4550 rather than 4500.

Code:
List @ 1000           List Fee: 50  (5% of LP)
Sell @ 5000           Sale Fee: 500 (10% of SP) - 50 LF = 450
--------------------------------------------------------------
Sale:  5000          Total Fee: 500
Earnings = 4500
I think the formula you want is: E = SP - (LP * .05) - ((SP *.1) - (LP *.05))

Regards,
4


PS> Also keep in mind that there is a minimum listing fee of 5, so Earning
can actually go negative if for instance, you list at 1 and it sells for 1.



(Edit: Re-arranged equation to illustrate "process" flow better.)


I've been rich, and I've been poor. Rich is definitely better.
Light is faster than sound - that's why some people look smart until they speak.
For every seller who leaves the market dirty stinkin' rich,
there's a buyer who leaves the market dirty stinkin' IOed. - Obitus.

 

Posted

Ah, I see where my misunderstanding is. Thank you so much for your help on this!


Main Character: Ice/Storm/Ice Controller (Justice, 1340 badges)

 

Posted

Here's the really simple and correct answer...

E = SP * 0.9

It doesn't really matter what you list something at. The listing fee cancels out of the equation.

E = SP - (LP * .05) - ((SP *.1) - (LP *.05))
E = SP - (LP * .05) - (SP *.1) + (LP *.05)
E = SP - (SP *.1)
E = SP * 0.9


Goodbye and thanks for all the fish.
I've moved on to Diablo 3, TopDoc-1304

 

Posted

Quote:
Originally Posted by TopDoc
E = SP * 0.9
Yep. That's the practical TL;DR distillation of market fees.

I wanted to show more of the actual process that occurs with my formula, in the
sense, that when you list something, the fee is charged and taken right then
and there, and when you actually sell, a further fee is also taken.

But, the end result is a total fee that is 10% of Sales Price, paid in two separate
transaction steps.


Regards,
4


I've been rich, and I've been poor. Rich is definitely better.
Light is faster than sound - that's why some people look smart until they speak.
For every seller who leaves the market dirty stinkin' rich,
there's a buyer who leaves the market dirty stinkin' IOed. - Obitus.

 

Posted

Quote:
Originally Posted by FourSpeed View Post
My understanding is that Sales Fee is 10% of Sale Price, *but* List Fee is included
as part of that (ie, it's essentially refunded).
Huh. I learned something today.


De minimis non curat Lex Luthor.

 

Posted

Quote:
Originally Posted by TopDoc View Post
Here's the really simple and correct answer...

E = SP * 0.9
Oh, well, that does make it simple! Thank you!


Main Character: Ice/Storm/Ice Controller (Justice, 1340 badges)

 

Posted

Quote:
Originally Posted by flipside View Post
Oh, well, that does make it simple! Thank you!
Yes, and that will work perfectly as long as you sell it. If you list something but remove it from the market without selling it, then your listing fee will not be refunded.


Avatar: "Cheeky Jack O Lantern" by dimarie

 

Posted

Quote:
Originally Posted by peterpeter View Post
Yes, and that will work perfectly as long as you sell it. If you list something but remove it from the market without selling it, then your listing fee will not be refunded.
I like to be optimistic that I'm selling everything I'm listing. Sometimes that is stupid optimism, but I'd say I'm in the 80/20 rule there.


Main Character: Ice/Storm/Ice Controller (Justice, 1340 badges)