I first built 90 gates at DFW in around 1956 or 1957, and then i recently built another 90 gates at ATL.
The weird thing that happen is that the monthly cost differences for the 2 airport are way too high. You can see it in the picture that DFW monthly cost me more than $2,203,931 while ATL which have higher monthly gate cost, only cost me around $342,352. Is it normal or there is some error on it?