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					Originally Posted by Peter_Spaeth  How hard is it to add 20 percent in your head or with a calculator?  Much ado about nothing IMO. | 
	
 If I am tracking multiple items and constantly looking at one figure then adding 20% and moving on to the next, it can get confusing.  Maybe some of us are not as great at math and memory.  It's not a big deal.  I just wish it wasn't a necessary step personally.