After-tax net income of $2.96 billion increased 7.8% in 2019 at Discover Financial Services (DFS), while revenues net of interest expense of $11.46 billion grew 7.0%. Purchase volume generated by Discover brand credit and prepaid cards totaled $146.18 billion, an increase of 5.1% over 2018. Credit card cash advances totaled $14.10 billion, an increase of 2.2%. Total volume, a combination of purchases and credit card cash, grew 4.9% to $160.28 billion. Credit card cash amounted to 8.80% of total volume, which compared to 9.03% in 2018. Credit cards in circulation at December 31, 2019, rea...