Hello!
There's bug in the resourses market, specifically with the "Future orders" tool, the game discount your gold 2X, first when you add the order and again when someone sell for "your" price...
I'll give the example(happened to me), I added a 25 golden ingots for 10K order, so I'll pay 250K(+ fee), the game discounts the 250K instantly(when you make your order), but here is the problem, the game discounts the gold again when you someone sell the resourses, so I paid 250K+250K(+fee)(or 20K p/ingot), simplifying, I paid the double for the resourses for the same number of ingots(or I lost 250K)...
I did a few tests to see if it's really happening all the time, and yes, it is...