Sort a table with two columns based on the first

Question

I have a powershell table with the columns 'Used Perc' and 'ID'.
This was formed from the following 
$a = @{Expression={[System.Math]::Round(($_.nUsed_Avg/$_.nSize)*100,1)};Label="Used Perc";width=25}, @{Expression={$_.nStatisticalDiskIdentificationID};Label="ID";width=15}
$GLOBAL:CSV2 = Import-CSV $STATDISKOUT | Format-Table $a
Before this, the file $STATDISKOUT had the columns 'nUsed_Avg', 'nSize', and 'nStatisticalIdentificationID'.
My question is, how would I sort the new table based on 'Used Perc' but keeping the corresponding 'ID' column lined up to the right value?

Answer 1

We use a select statement to reorder columns and recalculate,  The formatters just go at the end to adjust the display.
Import-Csv <file> | select <column order format> | Format-Table
or you can do it in the table:
Import-Csv <file | Format-Table -Properties ,f1.,f2.,,f3....Here is how to inset a sort inline:
$a=@{
L='ID';
E={$_.nStatisticalDiskIdentificationID};
L='Used Perc';
E={[System.Math]::Round(($_.nUsed_Avg/$_.nSize)*100,1)}
Import-CSV $STATDISKOUT | Select $a | Sort 'Used Perc' | Format-Table -Auto
¯\_(ツ)_/¯