What is the percentage change in net revenue from the Middle East in 2019 compared to 2018?
{"2019 -- Canada": {"Application Software": 41.0, "Network Software & Systems": 71.1, "Measurement & Analytical MeasurementSolutions": 81.4, "Process Technologies": 28.9, "Total": 222.4}, "2019 -- Europe": {"Application Software": 188.8, "Network Software & Systems": 36.7, "Measurement & Analytical MeasurementSolutions": 307.2, "Process Technologies": 113.8, "Total": 646.5}, "2019 -- Asia": {"Application Software": 3.5, "Network Software & Systems": 18.8, "Measurement & Analytical MeasurementSolutions": 185.0, "Process Technologies": 108.0, "Total": 315.3}, "2019 -- Middle East": {"Application Software": 8.6, "Network Software & Systems": 37.5, "Measurement & Analytical MeasurementSolutions": 13.1, "Process Technologies": 44.4, "Total": 103.6}, "2019 -- Rest of the world": {"Application Software": 25.8, "Network Software & Systems": 9.5, "Measurement & Analytical MeasurementSolutions": 45.3, "Process Technologies": 55.2, "Total": 135.8}, "2019 -- Total": {"Application Software": 267.7, "Network Software & Systems": 173.6, "Measurement & Analytical MeasurementSolutions": 632.0, "Process Technologies": 350.3, "Total": 1423.6}, "2018 -- Canada": {"Application Software": 38.5, "Network Software & Systems": 58.5, "Measurement & Analytical MeasurementSolutions": 79.3, "Process Technologies": 35.0, "Total": 211.3}, "2018 -- Europe": {"Application Software": 188.6, "Network Software & Systems": 12.2, "Measurement & Analytical MeasurementSolutions": 361.7, "Process Technologies": 117.5, "Total": 680.0}, "2018 -- Asia": {"Application Software": 3.2, "Network Software & Systems": 11.0, "Measurement & Analytical MeasurementSolutions": 220.3, "Process Technologies": 115.4, "Total": 349.9}, "2018 -- Middle East": {"Application Software": 4.7, "Network Software & Systems": 48.6, "Measurement & Analytical MeasurementSolutions": 14.4, "Process Technologies": 34.4, "Total": 102.1}, "2018 -- Rest of the world": {"Application Software": 29.5, "Network Software & Systems": 7.8, "Measurement & Analytical MeasurementSolutions": 42.5, "Process Technologies": 55.0, "Total": 134.8}, "2018 -- Total": {"Application Software": 264.5, "Network Software & Systems": 138.1, "Measurement & Analytical MeasurementSolutions": 718.2, "Process Technologies": 357.3, "Total": 1478.1}, "2017 -- Canada": {"Application Software": 26.6, "Network Software & Systems": 52.9, "Measurement & Analytical MeasurementSolutions": 72.9, "Process Technologies": 34.7, "Total": 187.1}, "2017 -- Europe": {"Application Software": 176.5, "Network Software & Systems": 11.0, "Measurement & Analytical MeasurementSolutions": 310.6, "Process Technologies": 98.1, "Total": 596.2}, "2017 -- Asia": {"Application Software": 2.4, "Network Software & Systems": 7.3, "Measurement & Analytical MeasurementSolutions": 205.9, "Process Technologies": 109.8, "Total": 325.4}, "2017 -- Middle East": {"Application Software": 4.8, "Network Software & Systems": 58.8, "Measurement & Analytical MeasurementSolutions": 13.4, "Process Technologies": 35.5, "Total": 112.5}, "2017 -- Rest of the world": {"Application Software": 23.2, "Network Software & Systems": 6.1, "Measurement & Analytical MeasurementSolutions": 42.0, "Process Technologies": 48.7, "Total": 120.0}, "2017 -- Total": {"Application Software": 233.5, "Network Software & Systems": 136.1, "Measurement & Analytical MeasurementSolutions": 644.8, "Process Technologies": 326.8, "Total": 1341.2}}
net_revenue_2019 = df["2019 -- Middle East"]["Total"]
net_revenue_2018 = df["2018 -- Middle East"]["Total"]
answer = (net_revenue_2019 - net_revenue_2018) / net_revenue_2018 * 100.0