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weird feedback system ?

 
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grandos



Posts: 12

PostPosted: Tue Jan 11, 2011 4:40 am    Post subject: weird feedback system ? Reply with quote

Hello guys i recently received bad negative feedback from one of my customer because the product doesn't have the user manual for her to read.

Then i saw on my product listing my feedback score is - 95,42% instead of 95,42% without (-).


Are this normal or some kind of bug ?

Thanks guys.
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wtcollectibles



Posts: 2728

PostPosted: Tue Jan 11, 2011 6:04 am    Post subject: Reply with quote

Feedback is weighted by the price of the item. So your positive feedbacks must have been for less expensive items and received less weight.

Ex. - Item A cost $10.00, Item B cost $20, and Item C cost $70. A and B received positive feedback, C received negative feedback. So 30% of the feedback is positive and 70% is negative, making the negative feedback count more than the positives. I don't know the exact calculation method used here, but that's how you get minus % feedback.
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bigtallmensclothing
moderator


Posts: 21854

PostPosted: Tue Jan 11, 2011 2:35 pm    Post subject: Reply with quote

This is explained in the FAQ section of this forum under the FEEDBACK topic.
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maggiethehousecat



Posts: 2401

PostPosted: Tue Jan 11, 2011 3:20 pm    Post subject: Reply with quote

Wow! I did not know that and I've been here for years.
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grandos



Posts: 12

PostPosted: Tue Jan 11, 2011 5:31 pm    Post subject: Reply with quote

neither do i
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bigtallmensclothing
moderator


Posts: 21854

PostPosted: Tue Jan 11, 2011 5:35 pm    Post subject: Reply with quote

[quote="bigtallmensclothing" ]Posted: 09 Jul 2008 11:06
How is feedback calculated

Feedback is amount based.

example:

order1: $50 positive
order2: $100 negative

feedback score: -66.67%[/quote]

It was discussed somewhere in this forum back in July of 2008 which is why I got the answer and posted it in the FAQ section feedback topic.
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grandos



Posts: 12

PostPosted: Tue Jan 11, 2011 5:37 pm    Post subject: Reply with quote

ok maybe i dumb or something but how you got -66.67% instead of -50 %.

well -100 - +50 = - 50% right ?
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maggiethehousecat



Posts: 2401

PostPosted: Tue Jan 11, 2011 7:58 pm    Post subject: Reply with quote

Grandos if both purchases were worth $50 you would be correct but since one was worth twice as much as the other, a negative for that one would count more heavily.

Not sure why they do it this way except to deter people selling high $$ value items from scamming buyers.
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jigsaw-puzzle-palooza



Posts: 766

PostPosted: Tue Jan 11, 2011 9:02 pm    Post subject: Reply with quote

This whole thing is probably real simple but I'm just not getting it. Maybe if I see the "formula" written out it would help.

So 50% positive & 50% negative = -50%? I understand that half the total is negative. But it is also half positive.


So if 100% positive and 0% negative = +100% why wouldn't 50/50 = +50%.

The negative doesn't seem to make sense. I'd think the lowest your feedback could ever be is 0%.

Can someone write this formula out??
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wtcollectibles



Posts: 2728

PostPosted: Wed Jan 12, 2011 7:03 am    Post subject: Reply with quote

bigtallmensclothing wrote:

It was discussed somewhere in this forum back in July of 2008 which is why I got the answer and posted it in the FAQ section feedback topic.

I'm the one who brought it up back in 2008 because it looked so odd but I never thought to look and see if it was in the FAQ's. Embarassed

I don't know the formula or how it is calculated. Just looking at 2 sales, $50 positive and $100 negative, out of a total of $150 in sales, that means that 1/3 is positive and 2/3 is negative. 2/3 negative = -66.67%. That's one possibility, but just a guess.

Obviously negatives here are counted quite heavily and bad sellers are to be punished which is laudable. Another guess from me - this is why Ecrater is so helpful in removing unwarranted negatives if the seller can prove it, because they realize that a single negative can be so devastating and they don't want good sellers to suffer, which is also laudable.

Mathematically it's very weird but I believe it is with good intentions and attempting to keep sellers honest. If we were voting, I would say ditch the feedback totally. But that's for another discussion!
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kjscreations



Posts: 1726

PostPosted: Fri Jan 14, 2011 12:38 pm    Post subject: Reply with quote

LOL.... it must have "looked good on paper" back then but in reality, not so good LOL. Anotherwords, it made sense in someones head.
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