Here are some screenshots to illustrate my post https://imgur.com/a/WeFzJKj

Just Victoria things, I don't think anything in the mod could affect this.

引用自 Orb：

Started a fresh game with a fresh install as Japan and only this mod.
It looks like expected profits are not updated correctly - they often show out-of-date information.
Don't know whether it's the mod or V3 1.0.4.

For example, the estimates that use a simple production method previously employed a few years ago are shown for the tool workshop. In the provinces that don't have a tooling workshop, the estimate is done using the production method actually used in the factory, and the selling prices are more up-to-date. Similar stuff for other buildings, peculiar numbers.

Thats a victoria thing, it assumes you only lose 30 wood from your stockpile and get 30 tools, it doesnt account for:

making it cheaper, and other industries more prosperous
opening up more wood jobs in too large industrys that didnt fill up due to a lack of profitibility
opening up more jobs in the same state and throughoutput bonuses etc.

it also always assumes the most basic production method, for some reason, i dont know why. but i think the workaround is by building it, then changing it to every single industry, then reentering the builöding menu and checking again

if not, well, thats why ocmpact mods are great because this is the kinda ♥♥♥♥ that makes me wanna knwo exactly how much fertilized farms i can have per livestock ranch :DDD (0.7, you wanna have 2 livestock ranches per farm for optimum output , 3 if you get better fertilizers)

引用自 Orb：

Started a fresh game with a fresh install as Japan and only this mod.
It looks like expected profits are not updated correctly - they often show out-of-date information.
Don't know whether it's the mod or V3 1.0.4.

For example, the estimates that use a simple production method previously employed a few years ago are shown for the tool workshop. In the provinces that don't have a tooling workshop, the estimate is done using the production method actually used in the factory, and the selling prices are more up-to-date. Similar stuff for other buildings, peculiar numbers.

By the very nature of Victoria 3 (having a dynamic economy where prices change based on supply and demand), any expected profits calculation will be either extremely complex to the point of not being worth implementing, or wrong because it's immediately out of date as soon as some change happens in the market.