PayPal Inc. co-founder and Affirm’s CEO Max Levchin on center stage during day one of Collision 2019 at Enercare Center in Toronto, Canada.Vaughn Ridley | Sportsfile | Getty ImagesAffirm, the provider of buy now, pay later loans, gave a revenue forecast for the current quarter that trailed analysts' estimates even as profit for the prior quarter was better than expected. The stock fell 10% in extended trading on Thursday.Here's how the company did, compared to analysts' consensus estimates from ...