A comparative index number for each county will be calculated.
(a). Each county's index number will be calculated in the following manner: Each item's price in a county will be divided by the Statewide Average Price for the item. The resulting number will be multiplied by the item's weight, and all items will then be summed to calculate the county's all items index number.
[* Internal error: Place aborted. | In-line.WPG *] where: P = Price,
w = weight,
i = item,
j = county,
n = number of priced items,
SWA = State Wide Average.
(b). To calculate individual category index numbers, the formula in Chapter 4, Section 3.(a). will be used, but only those items in the category will be summed. In addition, the resulting number will be divided by the sum of the weights of all items in the category and then multiplied by 100.
006-4 Wyo. Code R. § 4-3