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Old 04-27-2010, 04:42 PM   #5
zen
 
Drives: 2011 CTS CPE & 2010 2LT/RS CGM
Join Date: Jun 2009
Location: Nevada
Posts: 337
You have the difference in cost between 87 and 93 at .25 in both cases. However, as the price goes up the difference in cost increases to .30 (if I remember from the past). Therefore, your analysis will not be correct relative to the future.
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