Use of Non-GAAP Financial Measures To supplement our condensed consolidated ûnancial statements, which are prepared and presented in accordance with generally accepted accounting principles in the United States ("GAAP"), we present the following non-GAAP ûnancial measures, including revenue less transaction costs, revenue less transaction costs as a percentage of GMV, adjusted operating loss and adjusted operating margin. We also present certain operating expenses on a non-GAAP basis, as well as those non-GAAP operating expenses as a percentage of GAAP total revenue. Reconciliations of each non-GAAP ûnancial measure with the most directly comparable GAAP ûnancial measure can be found in our earnings supplement slide deck, which is available on our Investor Relations website. Our management uses these non-GAAP ûnancial measures in conjunction with ûnancial measures prepared in accordance with GAAP for planning purposes, including the preparation of our annual operating budget, as a measure of our operating results and the effectiveness of our business strategy, and in evaluating our ûnancial performance. However, non-GAAP ûnancial information is presented for supplemental informational purposes only, and our use of these non-GAAP ûnancial measures has limitations as an analytical tool. Accordingly, you should not consider these non-GAAP ûnancial measures in isolation or as substitutes for analysis of our ûnancial results as reported under GAAP, and these non-GAAP measures should be considered along with other operating and ûnancial performance measures presented in accordance with GAAP. Investors are encouraged to review the related GAAP ûnancial measures and the reconciliations of these non-GAAP ûnancial measures to their most directly comparable GAAP ûnancial measures and not rely on any single ûnancial measure to evaluate our business. A F F I R M | 2 0 2 3 4