Dropbox Investor Presentation Deck

Non-GAAP reconciliation Gross profit Gross margin Research and development Research and development margin Sales and marketing Sales and marketing margin General and administrative General and administrative margin Impairment related to real estate assets Impairment related to real estate assets margin Income from operations Operating margin Note: % are rounded for presentation purposes GAAP $ 1,713.7 79% 755.9 35% 427.5 20% 224.6 10% 31.3 1% 274.4 13% Stock based compensation $ 23.2 1% (190.1) (9%) (25.0) (1%) (48.8) (2%) T 287.1 13% Twelve Months Ended - 2021 Amortization of acquired intangible assets $ Acquisition- related and other expenses $ (19.7) (1%) (5.3) (1.8) I I I 26.8 1% 6.0 T T (7.1) I I 13.1 1% Impairment related to real estate assets | | (31.3) (1%) 31.3 1% Workforce reduction expense $ 1.7 (3.2) (6.9) (2.5) I I I 14.3 1% Non-GAAP $ 1,744.6 80% 542.9 25% 383.2 19% 171.5 8% T T 647.0 30% 35

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