There is one pi good that tends to fall behind the others and i keep that topped up from the market.
The rest I make on other planets and sell the surplus. I haven’t included the cost of extracting from other planets because it’s already factored into the market price.
I have not factored into the input value the import costs, because the poco owner of this planet is nice enough to have zero taxes
I set up PI in my wormhole, it took ages to do so…
if I bother, I get about 200-300m per character when I run my PI planets… except it’s just not worth doing so, as there usually are better ways to spend an hour of my time. So nowadays I empty my planets a couple of times a year, those odd times when there are no sites to run and no players to shoot.
112m/day x 135 planets sold to straight buy orders if I don’t want to wait. Around 135m/day if I sell to people through discord. I do 4 day cycles on 115 planets with 20 being factory worlds.
If I use the products to turn into fuel blocks that goes up a bit, when fuel blocks are needed. But that comes in spurts when I can churn out 5 or 10m blocks inside 30 days.
Edit: I do coolant, enriched uranium, mechanical parts, consumer electronics, miniature electronics and robotics.
Edit2: I think I actually made more money when I had 1/3 the planets, but I was doing 24 hour cycles and after doing 30-40 resets every morning before work for a year was not for me anymore.
You may be assuming a single run produces only 1 block? Or you might be calculating the fuel block cost from each component at the current market value, which is not going to be the case with PI that is not coming from the market (a good sign for demand of low-ends). Which would only be poco taxes, industry index/fuel, and personal time.
Some alliances are even happy enough to eat up all the costs of the first two if they can have fuel available locally.