Sounds to me like Switch will be around 0.85 and XBO around 0.75.

XBO has always been underestimated, maybe we should add some 30% to the end result of the month in it's case? After all, the Switch-PS4 ratio seems very much on point right now, there ain't much else we can do to boost XBO without skewering the other numbers

You are right. This sounds good. I will start doing this in the daily updates in August and it will be easy to apply to July average. 

08/02/18 :

- Amazon :

1 (-) - Nintendo Switch Neon - 10 (-) - 299.00$
2 (-) - Nintendo Switch Grey - 30 (-5) - 299.00$
3 (-) - XBox One S 1Tb Starter Bundle - 40 (-5) - 285.99$
4 (-) - XBox One X 1 Tb - 66 (-2) - 476.50$

Out of Top 100 :

5 (R) - Playstation 4 Slim 1Tb Black - 85 (R) - 299.99$

PS4 : 0 points (-16) ; XBO : 72 + 35 = 107 points (-12) ; NS : 165 + 92 = 257 points (-10) ; PS4 (September) : 0 point (-)


- Best Buy :

1 (-) - Playstation 4 Slim 1Tb Black - 5 (-4) - 299.99$
2 (-) - Nintendo Switch Neon - 6 (-4) - 299.00$
3 (-) - Playstation 4 Pro 1Tb Spiderman LE - 7 (+1) - 399.99$
4 (-) - Nintendo Switch Grey - 16 (-5) - 299.00$
5 (-) - XBox One S 1Tb Starter Bundle - 17 (-5) - 299.99$
6 (-) - XBox One X 1Tb Playerunknown's Battlegrounds - 37 (-7) - 499.99$
7 (-) - XBox One X 1 Tb - 40 (-7) - 499.99$
8 (-) - XBox One S 1Tb Playerunknown's Battlegrounds - 72 (+6) - 299.99$

Out of Top 100 :

-

PS4 : 190 points (-20) ; XBO : 130 + 78 + 72 + 29 = 309 points (-47) ; NS : 185 + 135 = 320 points (-45) ; PS4 (September) : 180 points (+5)


- Gamestop :

1 (-) - Playstation 4 Pro 1Tb Spiderman LE - 18 (-3)
2 (+1) - Playstation 4 Slim 1 Tb - 97 (+30) - 299.99$
3 (-1) - Nintendo Switch Neon - 123 (-1) - 299.00$
4 (N) - XBox One X 1Tb Playerunknown's Battlegrounds - 187 (N) - 499.99$

Out of Top 100 :

-

PS4 : 54 points (+17) ; XBO : 7 points (+7) ; NS :39 points (-1) ; PS4 (September) : 170 points (-5)

Overall (Today) :

1 - NS : 308.6 points (-18.0) ; Month Average : 422.9 points/day ; 1.0
2 - XBO : 154.4 points (-12.0) ; Month Average : 162.7 points/day ; 0.38 (-)
3 - PS4 : 92.0 points (+0.2) ; Month Average : 138.5 points/day ; 0.33 (-)

Wow!  I've been mostly ignoring this thread, but after the recent NPD results, I've got to say that I'm really impressed.  Obviously the tool isn't perfect, but it's amazing how accurate it is already.  Good job!

08/03/18 :

- Amazon :

1 (-) - Nintendo Switch Neon - 14 (-4) - 299.00$
2 (-) - Nintendo Switch Grey - 32 (-2) - 299.00$
3 (-) - XBox One S 1Tb Starter Bundle - 54 (-14) - 285.99$
4 (-) - XBox One X 1 Tb - 72 (-6) - 476.00$
5 (R) - Playstation 4 Slim 1Tb Black - 94 (R) - 299.99$

Out of Top 100 :

-

PS4 : 7 points (+7) ; XBO : 47 + 29 = 76 points (-31) ; NS : 145 + 88 = 233 points (-24) ; PS4 (September) : 0 point (-)


- Best Buy :

1 (-) - Playstation 4 Slim 1Tb Black - 4 (+1) - 299.99$
2 (-) - Nintendo Switch Neon - 6 (-) - 299.00$
3 (-) - Playstation 4 Pro 1Tb Spiderman LE - 13 (-6) - 399.99$
4 (-) - Nintendo Switch Grey - 14 (+2) - 299.00$
5 (-) - XBox One S 1Tb Starter Bundle - 17 (-) - 299.99$
6 (-) - XBox One X 1Tb Playerunknown's Battlegrounds - 30 (+7) - 499.99$
7 (-) - XBox One X 1 Tb - 47 (-7) - 499.99$
8 (-) - XBox One S 1Tb Playerunknown's Battlegrounds - 52 (+20) - 299.99$

Out of Top 100 :

-

PS4 : 195 points (+5) ; XBO : 130 + 92 + 58 + 49 = 329 points (+20) ; NS : 185 + 145 = 330 points (+10) ; PS4 (September) : 150 points (-30)


- Gamestop :

1 (-) - Playstation 4 Pro 1Tb Spiderman LE - 17 (+1)
2 (+1) - Playstation 4 Slim 1 Tb - 75 (+22) - 299.99$
3 (-1) - Nintendo Switch Neon - 131 (-8) - 299.00$

Out of Top 100 :

4 (N) - XBox One X 1Tb Playerunknown's Battlegrounds - 187 (N) - 499.99$

PS4 : 76 points (+22) ; XBO : 0 points (-7) ; NS :35 points (-4) ; PS4 (September) : 170 points (-)

Overall (Today) :

1 - NS : 287.4 points (-21.2) ; Month Average : 417.9 points/day ; 1.0
2 - XBO : 126.6 points (-27.8) ; Month Average : 161.4 points/day ; 0.39 (+0.01)
3 - PS4 : 120.6 points (+28.6) ; Month Average : 137.8 points/day ; 0.33 (-)

08/04/18 :

- Amazon :

1 (-) - Nintendo Switch Neon - 16 (-2) - 299.00$
2 (-) - Nintendo Switch Grey - 34 (-2) - 299.00$
3 (-) - XBox One S 1Tb Starter Bundle - 48 (+6) - 285.99$
4 (+1) - Playstation 4 Slim 1Tb Black - 49 (+45) - 299.99$
5 (-1) - XBox One X 1 Tb - 66 (+6) - 476.00$

Out of Top 100 :

-

PS4 : 54 points (+47) ; XBO : 56 + 35 = 91 points (+15) ; NS : 135 + 84 = 219 points (-14) ; PS4 (September) : 0 point (-)


- Best Buy :

1 (-) - Playstation 4 Slim 1Tb Black - 3 (+1) - 299.99$
2 (-) - Nintendo Switch Neon - 4 (+2) - 299.00$
3 (+1) - Nintendo Switch Grey - 13 (+1) - 299.00$
4 (+1) - XBox One S 1Tb Starter Bundle - 16 (+1) - 299.99$
5 (-2) - Playstation 4 Pro 1Tb Spiderman LE - 18 (-5) - 399.99$
6 (-) - XBox One X 1Tb Playerunknown's Battlegrounds - 31 (-1) - 499.99$
7 (-) - XBox One X 1 Tb - 48 (-1) - 499.99$
8 (-) - XBox One S 1Tb Playerunknown's Battlegrounds - 75 (-23) - 299.99$

Out of Top 100 :

-

PS4 : 200 points (+5) ; XBO : 135 + 90 + 56 + 26 = 307 points (-22) ; NS : 195 + 150 = 345 points (+15) ; PS4 (September) : 125 points (-25)


- Gamestop :

1 (-) - Playstation 4 Pro 1Tb Spiderman LE - 16 (+1)
2 (+1) - Playstation 4 Slim 1 Tb - 68 (+7) - 299.99$
3 (-1) - Nintendo Switch Neon - 115 (+16) - 299.00$

Out of Top 100 :

-

PS4 : 84 points (+8) ; XBO : 0 points (-) ; NS :43 points (+8) ; PS4 (September) : 175 points (+5)

Overall (Today) :

1 - NS : 287.2 points (-0.2) ; Month Average : 413.2 points/day ; 1.0
2 - XBO : 134.2 points (+7.6) ; Month Average : 160.4 points/day ; 0.39 (-)
3 - PS4 : 167.2 points (+46.6) ; Month Average : 138.9 points/day ; 0.34 (+0.01)

08/05/18 :

- Amazon :

1 (-) - Nintendo Switch Neon - 14 (+2) - 299.00$
2 (-) - Nintendo Switch Grey - 32 (+2) - 299.00$
3 (-) - XBox One S 1Tb Starter Bundle - 47 (+1) - 285.99$
4 (-) - Playstation 4 Slim 1Tb Black - 56 (-7) - 299.99$
5 (-) - XBox One X 1 Tb - 75 (-9) - 476.00$

Out of Top 100 :

-

PS4 : 45 points (-9) ; XBO : 58 + 26 = 84 points (-7) ; NS : 145 + 85 = 233 points (+14) ; PS4 (September) : 0 point (-)


- Best Buy :

1 (-) - Playstation 4 Slim 1Tb Black - 3 (-) - 299.99$
2 (-) - Nintendo Switch Neon - 4 (-) - 299.00$
3 (-) - Nintendo Switch Grey - 12 (+1) - 299.00$
4 (-) - XBox One S 1Tb Starter Bundle - 14 (+2) - 299.99$
5 (-) - Playstation 4 Pro 1Tb Spiderman LE - 19 (-1) - 399.99$
6 (-) - XBox One X 1Tb Playerunknown's Battlegrounds - 27 (+4) - 499.99$
7 (-) - XBox One X 1 Tb - 53 (-5) - 499.99$
8 (-) - XBox One S 1Tb Playerunknown's Battlegrounds - 77 (-2) - 299.99$

Out of Top 100 :

-

PS4 : 200 points (-) ; XBO : 145 + 98 + 48 + 24 = 315 points (+8) ; NS : 195 + 160 = 355 points (+10) ; PS4 (September) : 120 points (-5)


- Gamestop :

1 (-) - Playstation 4 Pro 1Tb Spiderman LE - 13 (+3)
2 (-) - Playstation 4 Slim 1 Tb - 74 (-6) - 299.99$
3 (-) - Nintendo Switch Neon - 101 (+14) - 299.00$
4 (R) - Nintendo Switch Grey - 168 (R) - 299.00$

Out of Top 100 :

-

PS4 : 78 points (-6) ; XBO : 0 points (-) ; NS :50 + 17 = 67 points (+24) ; PS4 (September) : 180 points (+5)

Overall (Today) :

1 - NS : 324.4 points (+37.2) ; Month Average : 324.4 points/day ; 1.0
2 - XBO : 169.3 points ; Month Average : 169.3 points/day ; 0.52
3 - PS4 : 154.0 points (-13.2) ; Month Average : 154.0 points/day ; 0.47

First Update of August.
From now on a 1.3 multiplicator will be applied to XBO overall daily points to try and correct the recurring undertracking for the sytem.

So is Sony saving all the pro models for Spiderman's release or something?

08/06/18 :

- Amazon :

1 (-) - Nintendo Switch Neon - 14 (-) - 299.00$
2 (-) - Nintendo Switch Grey - 33 (-1) - 299.00$
3 (-) - XBox One S 1Tb Starter Bundle - 47 (-) - 285.99$
4 (+1) - XBox One X 1 Tb - 71 (+4) - 476.00$
5 (-1) - Playstation 4 Slim 1Tb Black - 82 (-26) - 299.99$

Out of Top 100 :

-

PS4 : 19 points (-26) ; XBO : 58 + 30 = 88 points (+4) ; NS : 145 + 86 = 231 points (-2) ; PS4 (September) : 0 point (-)


- Best Buy :

1 (-) - Playstation 4 Slim 1Tb Black - 3 (-) - 299.99$
2 (-) - Nintendo Switch Neon - 4 (-) - 299.00$
3 (+1) - XBox One S 1Tb Starter Bundle - 10 (+4) - 299.99$
4 (-1) - Nintendo Switch Grey - 14 (-2) - 299.00$
5 (+1) - XBox One X 1Tb Playerunknown's Battlegrounds - 25 (+2) - 499.99$
6 (-1) - Playstation 4 Pro 1Tb Spiderman LE - 27 (-8) - 399.99$
7 (-) - XBox One X 1 Tb - 43 (+10) - 499.99$
8 (-) - XBox One S 1Tb Playerunknown's Battlegrounds - 61 (+16) - 299.99$

Out of Top 100 :

-

PS4 : 200 points (-) ; XBO : 165 + 102 + 66 + 40 = 373 points (+58) ; NS : 195 + 145 = 340 points (-10) ; PS4 (September) : 98 points (-22)


- Gamestop :

1 (-) - Playstation 4 Pro 1Tb Spiderman LE - 13 (-)
2 (-) - Playstation 4 Slim 1 Tb - 63 (+11) - 299.99$
3 (-) - Nintendo Switch Neon - 87 (+14) - 299.00$

Out of Top 100 :

4 (R) - Nintendo Switch Grey - 168 (R) - 299.00$

PS4 : 88 points (+10) ; XBO : 0 points (-) ; NS :64 points (-3) ; PS4 (September) : 180 points (-)

Overall (Today) :

1 - NS : 316.8 points (-7.6) ; Month Average : 320.6 points/day ; 1.0
2 - XBO : 188.5 points (+19.2) ; Month Average : 178.9 points/day ; 0.56 (+0.04)
3 - PS4 : 143.2 points (-10.8) ; Month Average : 148.6 points/day ; 0.46 (-0.01)

08/07/18 :

- Amazon :

1 (-) - Nintendo Switch Neon - 15 (-1) - 299.00$
2 (-) - Nintendo Switch Grey - 36 (-3) - 299.00$
3 (-) - XBox One S 1Tb Starter Bundle - 45 (+2) - 285.99$
4 (-) - XBox One X 1 Tb - 82 (-11) - 476.00$
5 (-) - Playstation 4 Slim 1Tb Black - 90 (-8) - 299.99$

Out of Top 100 :

-

PS4 : 11 points (-8) ; XBO : 62 + 19 = 81 points (-7) ; NS : 140 + 80 = 220 points (-11) ; PS4 (September) : 0 point (-)


- Best Buy :

1 (-) - Playstation 4 Slim 1Tb Black - 3 (-) - 299.99$
2 (-) - Nintendo Switch Neon - 4 (-) - 299.00$
3 (+1) - Nintendo Switch Grey - 14 (-) - 299.00$
4 (-1) - XBox One S 1Tb Starter Bundle - 15 (-5) - 299.99$
5 (+1) - Playstation 4 Pro 1Tb Spiderman LE - 19 (+8) - 399.99$
6 (-1) - XBox One X 1Tb Playerunknown's Battlegrounds - 31 (-6) - 499.99$
7 (-) - XBox One X 1 Tb - 61 (-18) - 499.99$
8 (-) - XBox One S 1Tb Playerunknown's Battlegrounds - 87 (-26) - 299.99$

Out of Top 100 :

-

PS4 : 200 points (-) ; XBO : 140 + 90 + 40 + 14 = 284 points (-89) ; NS : 195 + 145 = 340 points (-) ; PS4 (September) : 120 points (+22)


- Gamestop :

1 (-) - Playstation 4 Pro 1Tb Spiderman LE - 21 (-8)
2 (-) - Playstation 4 Slim 1 Tb - 57 (+6) - 299.99$
3 (-) - Nintendo Switch Neon - 101 (-14) - 299.00$

Out of Top 100 :

-

PS4 : 94 points (+6) ; XBO : 0 points (-) ; NS :50 points (-14) ; PS4 (September) : 160 points (-20)

Overall (Today) :

1 - NS : 294.0 points (-22.8) ; Month Average : 311.7 points/day ; 1.0
2 - XBO : 158.1 points (-30.4) ; Month Average : 171.9 points/day ; 0.55 (-0.01)
3 - PS4 : 142.8 points (-0.4) ; Month Average : 146.7 points/day ; 0.47 (+0.01)