Sterling Results Presentation Deck

31 Appendix -Non-GAAP to GAAP Reconciliation Adjusted Net Income and Adjusted EPS Reconciliation cont'd Net (loss) income per share-diluted Adjusted Net Income adjustments per share Income tax benefit Amortization of acquired intangible assets Stock-based compensation Transaction expenses (1) Restructuring (2) Technology Transformation (3) Settlements impacting comparability (4) (Gain) loss on interest rate sw aps (5) Other (6) Income tax effect(7) Adjusted earnings per share- diluted Weighted average number of shares outstanding used in computation of Adjusted Diluted Earnings Per Share: Weighted average number of shares outstanding diluted (GAAP) Options not included in weighted average number of shares outstanding-diluted (GAAP) (using treasury stock method) $ $ Three Months Ended December 31, 2020 (0.01) $ (0.14) 0.17 0.02 0.02 0.02 0.03 0.03 (0.04) 0.10 $ 88,554,962 82,339 88,637,301 2021 0.03 $ (0.02) 0.14 0.05 0.04 0.01 0.04 (0.06) 0.23 $ 99,690,693 99,690,693 Year Ended December 31, 2020 (0.59) $ (0.13) 0.68 0.04 0.03 0.10 0.12 0.03 0.11 0.01 (0.10) 0.30 $ 88,345,312 74,276 88,419,588 2021 (0.21) (0.11) 0.56 0.34 0.46 0.05 0.14 0.01 0.01 (0.28) 0.97 90,218,386 4,864,164 95,082,550 Sterling

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