timthedevguy / AmSYS

Eve Online Alliance/Corporation Buyback System
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Pricing is being set wrong #49

Open Rayvenhaus opened 6 years ago

Rayvenhaus commented 6 years ago

When I use the buyback portion of this program I am getting incorrect estimates. For example, using the following copy and paste from in game:

Helium Isotopes 420,696 Ice Product 12,620.88 m3 368,719,009.20 ISK Hydrogen Fuel Block 15,000 Fuel Block 75,000 m3 295,357,050.00 ISK Hydrogen Isotopes 1,083,599 Ice Product 32,507.97 m3 1,040,135,844.11 ISK Liquid Ozone 42,500 Ice Product 17,000 m3 3,842,425.00 ISK Nitrogen Isotopes 22,442 Ice Product 673.26 m3 16,426,870.74 ISK Oxygen Isotopes 126,380 Ice Product 3,791.40 m3 135,581,727.80 ISK

I get an estimated value from AmSys of this:

Quantity Item Value
420,696 Helium Isotopes 394,957,188
15,000 Hydrogen Fuel Block 6,651,176,385
1,083,599 Hydrogen Isotopes 900,494,608
42,500 Liquid Ozone 3,354,355
22,442 Nitrogen Isotopes 14,966,783
126,380 Oxygen Isotopes 126,076,056

for a total of 8,091,014,229

where as evepraisal shows:

Qty Item Volume (m3) Single (sell)Single (buy) Total (sell)Total (buy) ISK/m3 (sell)ISK/m3 (buy)
1,083,599 Hydrogen Isotopes 0.03 941.85 882.95 1,020,587,718.15 956,763,737.05 31,395.00 29,431.67
420,696 Helium Isotopes 0.03 1,050.00 988.21 441,730,800.00 415,735,994.16 35,000.00 32,940.33
15,000 Hydrogen Fuel Block 5 20,014.95 19,747.71 300,224,250.00 296,215,650.00 4,002.99 3,949.54
126,380 Oxygen Isotopes 0.03 1,137.99 1,050.18 143,819,176.20 132,721,748.40 37,933.00 35,006.00
22,442 Nitrogen Isotopes 0.03 727.95 702.12 16,336,653.90 15,756,977.04 24,265.00 23,404.00
42,500 Liquid Ozone 0.4 94.04 86.92 3,996,700.00 3,694,100.00 235.10 217.30
Total Volume: 141,593.51
Total Sell Value: 1,926,695,298.25
Total Buy Value: 1,820,888,206.65  

That's a 6 to 7B difference.

Aarondorn2 commented 6 years ago

We use a market API exposed by fuzzworks. Prices may differ slightly from evepraisal, but not that much.

The prices in the tool are VERY configurable. As such, I need a bit more info on your set up before I can diagnose what's going on. Also, it looks like most the difference is with Hydrogen Fuel Block. Can you enter Hydrogen Fuel Block into the Market Price Search box in the top left of your application (hit 'enter', select the block from the list) and click around on the hub tabs until you find a number highlighted in green (see below screenshot)? That will tell me what hub/statistic your configuration is using. I need to know both the hub (Jita in screenshot) and statistic (Percentile).

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