I am doing an analysis on our current vehicle usage. We are currently using 3 vehicles (though we have data going back to when we were using 4). The data dates back to FY2014 (fiscal year starts in October). One of the main purposes of this analysis is to determine if our numbers of uses validate or need for 3 vehicles, and if not what would be in the necessary increase in usage in order to meet the validation level. Factors including in this extrapolation is the projected increase in staff leading to a pre-determined 10% increase to our most traveled destination (campus). Based on the 10% increase to campus compared to the overall usage, that percentage was in determining how many annual trips would be necessary in the future based on federal business days and number of projected future staff. The numbers used for the 3-car justification specifically, were derived from FY2015's numbers. Attached is the data source, there is a sheet detailing the breakdown of the aforementioned justification requirements as well as the tracking log's raw data (used as the data source). The .twb is also included. I am looking to have calculated field for the 3-car justification based on the details given, but I'm not sure how to effectively add information from the second sheet of the data source in order to create calculated fields such as: annual increase of vehicle usage needed to justify a certain number of vehicles, trips per future employee, per year in order to justify a certain number of vehicles, etc. I hope that I am giving helpful details as to what it is I need assistance with.