Profitability measures are omitted from performance analyses of marketing pool cooperatives that do not include raw products in their reported costs. A procedure to estimate the profitability of these cooperatives is proposed, converting net proceeds to a figure comparable to standard net profit or net margin. The median ROE calculated using the proposed adjustment was found to be significantly different from the median ROE of "net-margin-reporting" pools over the period 1971-1987. Application of this procedure will allow pool cooperatives to compare their profitability to other cooperatives and investor-owned firms.