Statistics collection recommendations – Teradata 14.0 - comment by arpitsinha

Thanks Carrie; Got the point.
 
Actually our client was collecting full stats on this column(s) and I saw the opportunity to suggest them this feature.
Next time onwards first I will read the explain plan; Here when I hardcoded 2 percent in USING SAMPLE command i saw the diffrence in CPU. 
 
If I see a candidate for USING SAMPLE; Is there any way to get the most accurate percentage of how much I need to put while collecting stats.

I am very sorry if i skipped this point in your earlier replies.