What percentage of consolidated net revenue in 2019 consists of net revenue from Americas?
{"Net revenues by geographic region: -- Americas": {"2019": 3341, "2018": 3880, "Increase/ (decrease)": -539, "% Change": -14}, "Net revenues by geographic region: -- EMEA (1)": {"2019": 2239, "2018": 2618, "Increase/ (decrease)": -379, "% Change": -14}, "Net revenues by geographic region: -- Asia Pacific": {"2019": 909, "2018": 1002, "Increase/ (decrease)": -93, "% Change": -9}, "Net revenues by geographic region: -- Consolidated net revenues": {"2019": 6489, "2018": 7500, "Increase/ (decrease)": -1011, "% Change": -13}}
net_revenue_americas_2019 = df["Net revenues by geographic region: -- Americas"]["2019"]
net_revenue_consolidated_2019 = df["Net revenues by geographic region: -- Consolidated net revenues"]["2019"]
answer = ( net_revenue_americas_2019 / net_revenue_consolidated_2019 ) * 100.0