REPRICE takes the rules you set in the assigned RULE GROUP and goes through them one at a time beginning with the rule at the top of list. Due to this, the order of the rules can sometimes make a difference. For example, filtering rules like ONLY REPRICE MY ITEMS AGAINST SAME OR BETTER CONDITION need to be placed toward the top of the list of a RULE GROUP.
To find out how REPRICE reached the NEW PRICE click on the STATUS field for a particular item. The RULE BREAKDOWN box will appear and show how the price was changed by each rule within the RULE GROUP.