let’s say your saving up for a DireWolf-Prime which costs 17,785,963 c-bills, you already have 7,814,813 c-bills and your averaging 200,000 c-bills per game.
cost = 17785963, owned = 7814813, last earned = 200000
These values would give a ‘ball park’ figure of 49 games or 8 hours in game.
Also, you can track your progress by entering the actual amount earned from your last game. Then hit the plus button which will add the ‘last earned’ value to your savings and automatically update your estimated games needed.