Drive Resolution / Conversion Constant Calculation method

[dcalderonv 0]

In motion control, there are many ways to calculate Drive resolution and conversion constant combination based on the units, the application and mechanical ratios from the motor to the output mechanism. However, inside the Drive properties in RSLogix5k, under Drive/Motor tab, they offer a quick tool to calculate them. That tool aims at rational combination of DR and CC to prevent decimal places error in the motion application. Does anyone know the exact method or formula they use to calculate those values? I am working on a application with several axis and I want to use that method of formula to calculate DR and CC for every drive based on the mechanical ratio using a spreadsheet. So I need to know what is "under the hood". Any help welcome! Calderón.