(1) On or before the 12th day of each month, or the first business day thereafter, the bureau will compute a quota price and an excess price for the preceding month as follows:

(a) Calculate the utilization value of butterfat and skim usage of pool producers' milk for all pool handlers and for milk processed at the Montana State Prison plant to determine a total dollar amount for butterfat and skim respectively.

(b) Add all adjustments for surplus sales described in ARM 32.24.523 and deduct transportation charges for shipments of unprocessed pool milk between pool plants described in ARM 32.24.524 from the skim totals derived in (1)(a).

(c) Add one-half of the balance of the pool settlement fund to the skim total derived in (1)(b) and deduct an amount equal to 12 cents per hundredweight of quota milk received by pool handlers.

(d) Divide the skim dollar amount derived in (1)(c) by the total skim pounds to determine a poolwide value per skim pound. Similarly, divide the butterfat dollar amount derived in (1)(a) by the total butterfat pounds to determine a poolwide value per butterfat pound.

(e) The quota price at 3.5% test will be $1.50 per hundredweight higher than the price for excess milk. The $1.50 per hundredweight differential will be split proportionately between butterfat and skim.

(f) To calculate the quota price, divide the excess pounds by total producer pounds. Multiply the resultant percentage by the differential in (1)(e) converted to dollars per pound and add the amount so derived proportionately to the butterfat and skim components of the poolwide prices in (1)(d). This skim price per pound multiplied by 96.5 pounds added to this butterfat price per pound multiplied by 3.5 pounds will result in the quota price per hundredweight at 3.5% butterfat for the month.

(g) To calculate the excess price, subtract the butterfat and skim proportions of the differential in (1)(e) converted to dollars per pound from the quota components in (1)(f) and add these negative amounts to the butterfat and skim components of the poolwide prices in (1)(d). The skim figure so derived multiplied by 96.5 pounds added to the butterfat figure so derived multiplied by 3.5 pounds will result in the excess price per hundredweight at 3.5% butterfat for the month.

(2) The bureau will announce to all interested persons on or before the 13th day of each month, or the first business day thereafter, the quota price and excess price per hundredweight for milk testing 3.5% butterfat, the quota butterfat price and excess butterfat price per pound, and the quota skim price and excess skim price per pound as computed pursuant to (1)(f) and (1)(g).