(a) We use net cruise revenues per ALBD ("net revenue yields") and net cruise costs per ALBD as significant non-GAAP financial measures of our cruise segment financial performance. These measures enable us to separate the impact of predictable capacity changes from the more unpredictable rate changes that affect our business. We believe these non-GAAP measures provide a better gauge to measure our revenue and cost performance instead of the standard U.S. GAAP-based financial measures. There are no specific rules for determining our non-GAAP financial measures and, accordingly, it is possible that they may not be exactly comparable to the like-kind information presented by other cruise companies, which is a potential risk associated with using these measures to compare us to other cruise companies. Net revenue yields are commonly used in the cruise industry to measure a company's cruise segment revenue performance and for revenue management purposes. We use "net cruise revenues" rather than "gross cruise revenues" to calculate net revenue yields. We believe that net cruise revenues is a more meaningful measure in determining revenue yield than gross cruise revenues because it reflects the cruise revenues earned net of our most significant variable costs, which are travel agent commissions, cost of air transportation and certain other variable direct costs associated with onboard and other revenues. Substantially all of our remaining cruise costs are largely fixed, except for the impact of changing prices, once our ship capacity levels have been determined. Net cruise costs per ALBD is the most significant measure we use to monitor our ability to control our cruise segment costs rather than gross cruise costs per ALBD. We exclude the same variable costs that are included in the calculation of net cruise revenues to calculate net cruise costs to avoid duplicating these variable costs in these two non-GAAP financial measures. We have not provided estimates of future gross revenue yields or future gross cruise costs per ALBD because the reconciliations of forecasted net cruise revenues to forecasted gross cruise revenues or forecasted net cruise costs to forecasted cruise operating expenses would require us to forecast, with reasonable accuracy, the amount of air and other transportation costs that our forecasted cruise passengers would elect to purchase from us (the "air/sea mix"). Since the forecasting of future air/sea mix involves several significant variables that are relatively difficult to forecast and the revenues from the sale of air and other transportation approximate the costs of providing that transportation, management focuses primarily on forecasts of net cruise revenues and costs rather than gross cruise revenues and costs. This does not impact, in any material respect, our ability to forecast our future results, as any variation in the air/sea mix has no material impact on our forecasted net cruise revenues or forecasted net cruise costs. As such, management does not believe that this reconciling information would be meaningful. In addition, because a significant portion of our operations utilize the euro or sterling to measure their results and financial condition, the translation of those operations to our U.S. dollar reporting currency results in decreases in reported U.S. dollar revenues and expenses if the U.S. dollar strengthens against these foreign currencies and increases in reported U.S. dollar revenues and expenses if the U.S. dollar weakens against these foreign currencies. Accordingly, we also monitor and report our two non-GAAP financial measures assuming the 2010 periods' currency exchange rates have remained constant with the 2009 periods' rates, or on a "constant dollar basis," in order to remove the impact of changes in exchange rates on our non-U.S. dollar cruise operations. We believe that this is a useful measure since it facilitates a comparative view of the growth of our business in a fluctuating currency exchange rate environment. On a constant dollar basis, net cruise revenues and net cruise costs would be $2.6 billion and $1.9 billion for the three months ended May 31, 2010 and $5.0 billion and $3.7 billion for the six months ended May 31, 2010, respectively. On a constant dollar basis, gross cruise revenues and gross cruise costs would be $3.1 billion and $2.4 billion for the three months ended May 31, 2010 and $6.1 billion and $4.8 billion for the six months ended May 31, 2010, respectively. In addition, our non-U.S. dollar cruise operations' depreciation and net interest expense were impacted by the changes in exchange rates for the three and six months ended May 31, 2010, compared to the prior year's comparable period. (b) ALBDs is a standard measure of passenger capacity for the period, which we use to perform rate and capacity variance analyses to determine the main non-capacity driven factors that cause our cruise revenues and expenses to vary. ALBDs assume that each cabin we offer for sale accommodates two passengers and is computed by multiplying passenger capacity by revenue-producing ship operating days in the period. SOURCE Carnival Corporation /CONTACT: Media, Tim Gallagher, +1-305-599-2600, ext. 16000; Investor Relations, Beth Roberts, +1-305-406-4832 /Web site: http://www.carnivalcorp.com Order free Annual Report for Carnival PLC Visit http://djnweurope.ar.wilink.com/?ticker=GB0031215220 or call +44 (0)208 391 6028 (END) Dow Jones Newswires June 22, 2010 09:15 ET (13:15 GMT)