We define Unlevered Free Cash Flow as net cash provided by (used in) operating activities less (i) purchases of property and equipment and other assets, plus (ii) cash interest expense, (iii) cash payments related to restructuring and transaction-related expenses, (iv) cash payments related to integration costs and acquisition-related compensation, and (v) legal settlement payments. Unlevered Free Cash Flow does not represent residual cash flow available for discretionary expenditures since, among other things, we have mandatory debt service requirements. Net revenue retention is a metric that we calculate based on customers of ZoomInfo at the beginning of the twelve-month period, and is calculated as: (a) the total annual contract value ("ACV") for those customers at the end of the twelve-month period, divided by (b) the total ACV for those customers at the beginning of the twelve-month period.