This spreadsheet created to analyze the profit/loss of shares purchased over the course of a game of Chicago Express/Wabash Cannonball. Each page in the workbook covers a round of the game and is linked the previous page. The 'Game analysis' sheet gives the profit/loss for shares purchased in each RR company.
This workbook can used to analyze the decisions in your games, or to run hypothetical games.
One word of caution: When you save the file and open it, save it as a different name when you use it. Entering in the income levels of RR companies and results of auctions overwrites formulas in the respective cells, so you'll need to not save the changes or open the original file to use it for a different game.
Hope you find it interesting.