. . . . . . "Adjusted EBITDA is calculated as Net (Loss) / Income before (1) other (income) expense, which includes interest income, interest expense and other income and expense, (2) income tax expense (benefit), (3) depreciation and amortization of property and equipment, (4) amortization of intangible assets, (5) stock-based compensation, and (6) the impact of adjusting deferred revenue to fair value under" .