PT, that is very interesting to me from a mathematical standpoint. About a week ago on the EMA thread, I calculated that according to the formula in the contract @ 9.2.J.3, the EMA would be 51.94 cents, which SHOULD round to 52 cents, not 51.5. I went through and calculated the last 5 EMA changes, and I'm dead-on for the first 3, but the last 2 are 1/2 cent lower than my figure, so I'm not sure exactly HOW the NRLCA is doing the calc!!??
Here's a copy of my post from 3-25 under the EMA thread:
Looks like I've been asleep at the wheel on this one. The CPI for February came out last week, and though I looked at the possible effect on our COLA, I totally forgot that February is the trigger month for EMA!!!!
Using the formula, and the transportation index for Feb., I get 165.976/139 X 43.5 cents = 51.94 cents, which I assume rounds to 52 cents. In other words, it looks as if our EMA has dropped another penny.
Jan 190.918
Feb 190.639 EMA = 57 cents
Mar 195.710
Apr 199.556
May 206.757 EMA = 62 cents
Jun 213.633
Jul 214.533
Aug 207.796 EMA = 65 cents
Sep 204.785
Oct 192.198
Nov 170.87 EMA = 53 cents
Dec 160.914
2009
Jan 163.215
Feb 165.976 EMA = 52 cents (according to my math, which could be wrong) ANNOUNCED EMA = 51.5
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Here are my figures:
Feb 2008 calc
190.639/139 X 41.5 cents = 56.917 cents
May 2008 calc
206.757/139 X 41.5 cents = 61.72 cents
Aug 2008 calc
207.796/139 X 43.5 cents = 65.03 cents
Nov 2008 calc
170.870/139 X 43.5 cents = 53.474 cents
Feb 2009 calc
165.976/139 X 43.5 = 51.94 cent


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