Guys at HP Tuners, HELP!!!

Hey guys i’ve been working trying to figure out how to do a acceleration rate in math, however I’m m missing a unit in my software I think it was there in an older version called mile per hour per second, if not is it possible to input the formula somewhere will not make a mess, I watched The Tuning Schools video on drivability and Bob sets up acceleration math to help you figure out your probability but that perimeter or unit Not available in my scanner, I’ve read threats on it to try and figure out another way to do it and what happens is when the formula is extrapolated it shows unit 155 however theres no way to put 155 in the unit box, is it something that you guys can do or add so that we can get this Unit back? I’m sure you know the formula but here it is anyway. Thank you for your help in advance.

"([13.114.avg(-1000)])-([13.114.avg(+1000)])

Decimals="3" Unit="155" Expression="([13.114.avg(-1000)]) - ([13.114.avg(+1000)])" Abbreviation="" Name="Accel Rate" />

([50020.110.avg(-1000)])-([50020.110.avg(1000)])

Miles per hour per second : 1mile/(h*s)