(a) 
The following calculation formula shall be used to determine the current charge, fee, or rate of a charge, fee or rate that is indexed based upon the ENR Index:
Current Fee =
Current ENR X Base Fee
Base ENR
(1) 
Example: The following is provided for convenience:
(i) 
Assume that the base fee is Three Hundred, Twenty Five and no/100ths ($325.00) Dollars. The March 10, 1992 ENR Index is 491.89. Assume that the ENR Index increases by 1/2 of 1 percent, or 0.005, to 494.34. The current fee, based on the new ENR Index, could be found as follows:
Current Fee = 494.35/491.89
X
$325.00
Current Fee = 1.0050011
X
$325.00
Current Fee = $326.66
(1018-CS, Added, 02/12/2004)