Author Topic: Requesting data for an updated sales to rank chart  (Read 5450 times)  

Offline Trish McCallan

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Requesting data for an updated sales to rank chart
« on: December 15, 2013, 06:46:30 PM »
Hey Everyone,

Id like to put together an Amazon rank to sales chart with new data.  Sales to rank after Thanksgiving seems a bit inflated, from what Im seeing on my own title. So for those of you who are recording your books rank and sales per day, would you be willing to share your data for November?

I know it takes more sales to achieve a rank than to hold it, so if you could include whether your books sales were accelerating, or whether they were holding steadyplateauedwould be helpful.   
If you're uncomfortable posting to this thread, please feel free to send the data to Trishmccallan1@gmail.com

Thanks in advance to anyone who is willing to participate.

Offline Edward W. Robertson

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Re: Requesting data for an updated sales to rank chart
« Reply #1 on: December 15, 2013, 07:45:26 PM »
Steady ranks:

400/day = #180
300/day = #235
110/day = #1000
100/day = #1100
    

Offline Vivi_Anna

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Re: Requesting data for an updated sales to rank chart
« Reply #2 on: December 15, 2013, 07:50:10 PM »
I can add...roughly...

600/day = #135

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Offline Edward W. Robertson

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Re: Requesting data for an updated sales to rank chart
« Reply #3 on: December 15, 2013, 07:59:45 PM »
And 50/day is about #2400.
    

Offline WG McCabe

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Re: Requesting data for an updated sales to rank chart
« Reply #4 on: December 15, 2013, 08:07:02 PM »
1 every other month is 1,262,295

 ;D

Offline Ardin

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Re: Requesting data for an updated sales to rank chart
« Reply #5 on: December 15, 2013, 08:17:28 PM »
35 a day is 3000. 20 a day is 7000. 10 a day is 10000. Holding steady.


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Offline AriadneW

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Re: Requesting data for an updated sales to rank chart
« Reply #6 on: December 15, 2013, 08:41:46 PM »
80 a day is around 1500


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Offline Charmaine

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Re: Requesting data for an updated sales to rank chart
« Reply #7 on: December 15, 2013, 09:43:46 PM »
Here's the equation for the all the data plots :)

y=175625.63126691X^-1.1252673308641



1 day/ rank 175,625
5 day/ rank 28,711
10 day/ rank 13,161
15 day/ rank 8,340
25 day/ rank 4,693
50 day/ rank 2,151
100 day/ rank 986
200 day/rank 452
300 day/ rank 287
400 day/ rank 207
500 day/ rank 161
1000 day/ rank 74
2000 day/ rank 34
3000 day/ rank 21

The higher the rank, the more the graph gets distorted (it's an exponential graph  ::) )
Anyways, here's some shooting off points for your chart
« Last Edit: December 15, 2013, 09:45:53 PM by Charmaine »

Offline Edward W. Robertson

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Re: Requesting data for an updated sales to rank chart
« Reply #8 on: December 15, 2013, 10:24:05 PM »
That formula is very accurate for many ranks, but starts to get inaccurate around #1000 (and #100,000 on the other end). For instance, it only took me 2200 to hit #16 with a climbing rank a few months ago. Still, it describes things pretty well.
    

Offline LilianaHart

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Re: Requesting data for an updated sales to rank chart
« Reply #9 on: December 16, 2013, 09:06:30 AM »
#100 is about 1000 copies per day.

#200 is about 500 copies per day. 

#527 is 150 copies per day.

#450 is 175 copies per day.

#737 is 120 copies per day

#1700 is 57 copies per day

#2800 is 30 copies per day

Offline Hugh Howey

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Re: Requesting data for an updated sales to rank chart
« Reply #10 on: December 16, 2013, 09:30:16 AM »
#100 is about 1000 copies per day.

#200 is about 500 copies per day. 

#527 is 150 copies per day.

#450 is 175 copies per day.

#737 is 120 copies per day

#1700 is 57 copies per day

#2800 is 30 copies per day

I call shenanigans!

How in the world would you know what it takes to be #2800?
 
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Offline KeithAllen

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Re: Requesting data for an updated sales to rank chart
« Reply #11 on: December 16, 2013, 09:38:35 AM »
This might be a dumb question, but aren't the algorithms price weighted? So if I sell a 1000 copies a day at 0.99 and 1000 copies a day at 3.99 won't my 3.99 title be ranked significantly higher?

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Offline Edward W. Robertson

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Re: Requesting data for an updated sales to rank chart
« Reply #12 on: December 16, 2013, 09:45:26 AM »
On the popularity lists, price is weighted. On the bestseller lists, it's nothin but volume and velocity.
    

Offline daringnovelist

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Re: Requesting data for an updated sales to rank chart
« Reply #13 on: December 16, 2013, 09:46:58 AM »
This might be a dumb question, but aren't the algorithms price weighted? So if I sell a 1000 copies a day at 0.99 and 1000 copies a day at 3.99 won't my 3.99 title be ranked significantly higher?

I think I accidentally spread that rumor once.  I was talking about how Amazon weights free books when they go back to priced, and about relevancy rankings and conflated the two for a while.  I don't believe there is any evidence that different prices have different weights.

Camille

Offline KeithAllen

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Re: Requesting data for an updated sales to rank chart
« Reply #14 on: December 16, 2013, 10:55:56 AM »
On the popularity lists, price is weighted. On the bestseller lists, it's nothin but volume and velocity.

Good to know...Thanks Ed.  Carry on...

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Offline Trish McCallan

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Re: Requesting data for an updated sales to rank chart
« Reply #15 on: December 16, 2013, 11:35:23 AM »
Thanks everyone!

Keep those numbers coming. :)

Offline pjchasesports

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Re: Requesting data for an updated sales to rank chart
« Reply #16 on: December 16, 2013, 09:24:30 PM »
I've had a book hold strong at 9800 rank with 12 sales a day.  And another of my books hits about a 50,000 rank on 2 sales a day.  Anecdotaly, I've heard one of my friends hanging with a 1300 rank with 75 sales a day.

Offline books_mb

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Re: Requesting data for an updated sales to rank chart
« Reply #17 on: December 17, 2013, 12:02:15 PM »
I can add these (all .com store):

2 / day = #50,000
4 / day = #40,000
5 / day = #24,000
7 / day = #18,000

Btw: I already fed all the data from this thread into Origin Pro. The best fit is:

rank = 170,710 / (daily sales)^1.272

with an adjusted R-square 0.978 ... fantastic fit, better than expected. Hope more will contribute, this is gold.



Offline Trish McCallan

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Re: Requesting data for an updated sales to rank chart
« Reply #18 on: December 17, 2013, 03:38:31 PM »
I've had a book hold strong at 9800 rank with 12 sales a day.  And another of my books hits about a 50,000 rank on 2 sales a day.  Anecdotaly, I've heard one of my friends hanging with a 1300 rank with 75 sales a day.

Thanks you!

I can add these (all .com store):
2 / day = #50,000
4 / day = #40,000
5 / day = #24,000
7 / day = #18,000
Btw: I already fed all the data from this thread into Origin Pro. The best fit is:
rank = 170,710 / (daily sales)^1.272
with an adjusted R-square 0.978 ... fantastic fit, better than expected. Hope more will contribute, this is gold.

This is great! Thank you so much!
And yes, PLEASE, let's get some more sales to rank data--particularly in 50,000 and up range. 100,000-500,000 could some of you please share what your sales are at this rank? It would be much appreciated. :)

Offline books_mb

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Re: Requesting data for an updated sales to rank chart
« Reply #19 on: December 17, 2013, 04:55:34 PM »
And yes, PLEASE, let's get some more sales to rank data--particularly in 50,000 and up range. 100,000-500,000 could some of you please share what your sales are at this rank? It would be much appreciated. :)

I guess you rather share data that shows success ... to break the ice, here's the data from two of my books that are not doing so well:

0.25 / day = #260,000
0.3 / day = #250,000
0.5 / day = #200,000
0.67 / day = #180,000

It's all I got for now, but I'll bookmark the thread and post some new data at the end of December. Note that the provisional best fit fails for ranks > 100,000 (which is no surprise considering the lack of data). In this range the good ol' rank = 100,000 / sales is still the best guess. But I have no idea how reliable that is.



Offline Trish McCallan

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Re: Requesting data for an updated sales to rank chart
« Reply #20 on: December 17, 2013, 06:41:08 PM »
I guess you rather share data that shows success ... to break the ice, here's the data from two of my books that are not doing so well:
0.25 / day = #260,000
0.3 / day = #250,000
0.5 / day = #200,000
0.67 / day = #180,000

Oh Perfect, thank you.  :)

Offline PhoenixS

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Re: Requesting data for an updated sales to rank chart
« Reply #21 on: December 17, 2013, 07:32:06 PM »
Hey Everyone,
Id like to put together an Amazon rank to sales chart with new data.  Sales to rank after Thanksgiving seems a bit inflated, from what Im seeing on my own title. So for those of you who are recording your books rank and sales per day, would you be willing to share your data for November?

Theresa Ragan's chart is still a good ballpark, I think, if you just increase the sales by 10% for each rank. The issue with attempting to do any sort of more accurate chart is that, as you note, the numbers are all dependent on store volume. Black Friday to Christmas is one degree of level up. Christmas to New Year's is another degree. New Year's to Valentine's Day is another degree. April, July, August and October are depressed. To be truly useful, there would need to be a chart for each degree of store volume.

As Ed notes, it took 2200 sales to hit #16 in Sept. Yesterday, it took 2800 sales to hit #18. It'll take more than 2800 on Dec 28, and fewer than 2200 on July 28.  

What would be especially useful would be an overlay of sales-to-hit on top of store volume trends. But is anyone here tracking store volume via rank? I did some reverse engineering of rank last year in the period right after Christmas to determine the percent increase in volume at Amazon, but I haven't seen any similar studies from anyone else here. The difference in sales numbers to hit a given rank throughout the year is really more insightful than averages that, very much like a broken analog clock, are only accurate maybe 2 months out of the year. ;)

(Edited sales numbers because I can't multitask.)
« Last Edit: December 17, 2013, 08:15:02 PM by Phoenix Sullivan »
  (click to enbiggen)

Offline VydorScope

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Re: Requesting data for an updated sales to rank chart
« Reply #22 on: December 17, 2013, 07:34:44 PM »
This is all very interesting. I can't wait to see the results.
Vincent 
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Offline WG McCabe

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Re: Requesting data for an updated sales to rank chart
« Reply #23 on: December 17, 2013, 07:37:01 PM »
<a href="http://www.youtube.com/watch?v=gZEdDMQZaCU" target="_blank">http://www.youtube.com/watch?v=gZEdDMQZaCU</a>

I kid. This is all fantastic and  I'm glad you are all smarter than me so it can be figured out.

Offline Joe Vasicek

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Re: Requesting data for an updated sales to rank chart
« Reply #24 on: December 17, 2013, 08:41:38 PM »
The free ranks are considerably different.  I haven't really measured them, but I've got a story that hovers around #2000 and gets about 70-80 downloads per day on the main amazon site.