This started as a Pyramid of the Sun exploration but turned into a bigger bug, so this may deserve being split into two.

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I have a city with the Pyramid of the Sun (PotS) built in it.  PotS grants "+2 Food on Territory's Districts and Exploitations", and I assume that means its benefits are limited to territory in which it's placed, which is always the territory of the main plaza.

Problem #1: Pyramid of the Sun claims to affect other territories (but not the one that it should)

The District Placement Recommendations popup suggests that other territories (but not the PotS territory) get the +2 food bonus, which seems backwards.  The food bonus of +4 on that tile is correct, by the way; I have the Harappans Legacy Trait and Feudalism researched, each give +1 Food on Food tiles, so I would expect the bonus to be +4.

Optimal placement in other territories?  (Pyramid of the Sun on far left.  Food bonus to district on far right)

Problem #2: Actual Food Output different from prediction, tile display?

Before building a new district, my city has 73 food from Exploitation and 123 from district (as well as other bonuses).

Let's build different districts in four two different locations to see what happens:

1. Farmers Quarter in PotS territory
2. Market Quarter in PotS territory
3. Farmers Quarter in remote territory (ran out of time this morning).  Probably not worth it because it's just the PotS thing, above
4. Market Quarter in remote territory (ran out of time this morning).  Probably not worth it because it's just the PotS thing, above

I'd also like to add on the topic of district yield calculation, but about Inca's affinity "On condor's wings". The tooltip seems to always apply this bonus for calculation regardless of existence/absence of mountains. Note, that on both territories I don't have a terrace farm built.

Giausar territory in the Memphis city.

Save file: Nigerians - Continents - Humankind.ctr

RedSirus wrote:

After building the Market Quarter, we now have 81 Food from Exploitation (an increase of +8 over the original 73) and 127 Food from District (increase of +4 over the original 123).

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How are these being calculated?

I think I see what's going on now.  Before I built the Market Quarter (MQ), that district's tile was Exploitation, and thanks to the Pyramid of the Sun (PotS), it was providing 4 food to the city (even though that tile's only exploiting district was the Satrap's Palace, PotS gives us +4 food on that tile without needing Farmers Quarters to exploit nearby food).

After building the MQ, that tile moved from being Exploitation Food (-4) to District Food (+4).  The expansion also added three new tiles of Exploitation to the city, which PotS provides +4 food on each of those tiles regardless of the adjacent tile (it doesn't need to be a Farmer's Quarter because of PotS).  This added +12 Exploitation Food to the city.  Summed up, this is why we received +4 District Food and +8 Exploitation Food from the addition of the Market Quarter.

Exploitation before the expansion: Yellow

Exploitation after the expansion: Blue

Exploitation converted into a District by the expansion: Red

The FIMS predictor was incorrect and the tile yields are incorrect, but the calculation is correct.  Phew!

Yeah, the 17*/24* are about equal because of the total ups/downs, though the combined miscalculations from PotS and the "Be Virtuous as Water" are biasing away from the 24F tile far more than it should, that's a compounding error of recommendations.  But I honestly has no idea why that 8f6i is being recommended, but for the fact that it would be (if correct, which it's not) a +14 yield.

EDIT:  To be clear, the game did not recommend the 24f (-5in-2mo-12sta) tile on its own.  I found it by looking around for a better Farmer's placement.