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 Income from operations Operating margin Note: % are rounded for presentation purposes $ GAAP 494.3 81% 235.2 38% 119.2 20% 55.8 9% 84.1 14% $ Three Months Ended March 31,2023 Stock based compensation 5.4 1% (52.9) (9%) (5.5) (1%) (12.2) (2%) 76.0 12% Acquisition- related and other expenses $ -% (5.4) (1%) (1.7) -% (0.3) -% 7.4 1% Amortization of acquired intangible assets $ 3.6 1% -% (3.4) (1%) -% 7.0 1% $ Non-GAAP 503.3 82% 176.9 29% 108.6 18% 43.3 7% 174.5 29%

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