In FM20 I am playing with Cottbus and got to 3.Liga after first season, next season ended mid-table. All the time I have problem with money because of high running costs of stadium (Stadion der Freundschaft) with capacity of 22,528. Every season the stadium costs me around 1,5m, which is killing my finances. After the season management decided to build new stadium with 13500 capacity, because of high running costs.
So, the question is how will running cost change and if it depends on the age of stadium?