A picture is worth a thousand words – Thank you!
That price chart looks wrong, many of the numbers are 100 times larger than they should be. Comparing your screenshot with the spreadsheet helped me figure it out.
Under the hood, the game reads the chart from a CSV file where 25 cents is represented as “0.25”. However, it looks like your system’s locale/language settings probably assume that the decimal separator is a comma, not a period, and so it reads “0.25” as 25 dollars not 25 cents. I had no clue that the system locale could change how numbers are parsed in C#.
I’ll post a new build with a fix as soon as I can.