I am trying to understand the VRP Compliance Calculator at the end of the template. I have completed the 62MZCalc spreadsheet, and it comes up with one answer for 30% increased ventilation. Our project complies with this number. If I enter data into the VRP Compliance Calculator, it spits out a larger number for 30% increase, and our project does not comply. Is this VRP Calculator required if one has already proved compliance with 62MZcalc? Under what circumstances is it mandatory to use it? Is it optional?