For fiscal year 2019, what is the total segements Operating income expressed as a percentage of net revenues?
{"Total segments: -- Net revenues": {"March 29, 2019": 4731, "March 30, 2018": 4834, "March 31, 2017": 4019}, "Total segments: -- Operating income": {"March 29, 2019": 1414, "March 30, 2018": 1584, "March 31, 2017": 1026}, "Enterprise Security: -- Net revenues": {"March 29, 2019": 2323, "March 30, 2018": 2554, "March 31, 2017": 2355}, "Enterprise Security: -- Operating income": {"March 29, 2019": 269, "March 30, 2018": 473, "March 31, 2017": 187}, "Consumer Cyber Safety: -- Net revenues": {"March 29, 2019": 2408, "March 30, 2018": 2280, "March 31, 2017": 1664}, "Consumer Cyber Safety: -- Operating income": {"March 29, 2019": 1145, "March 30, 2018": 1111, "March 31, 2017": 839}}
total_segments__Operating_income_March_29_2019 = df["Total segments: -- Operating income"]["March 29, 2019"]
total_segments__Net_revenues_March_29_2019 = df["Total segments: -- Net revenues"]["March 29, 2019"]
answer = total_segments__Operating_income_March_29_2019 / total_segments__Net_revenues_March_29_2019 * 100.0