What was the percentage change in the net sales from Other Countries between 2018 and 2019?
{"United States": {"2019": 292980, "2018": 233133, "2017": 198250}, "Hong Kong": {"2019": 188102, "2018": 169073, "2017": 121813}, "Germany": {"2019": 124805, "2018": 105548, "2017": 104755}, "Europe (2) (3)": {"2019": 76149, "2018": 64248, "2017": 63863}, "China": {"2019": 173148, "2018": 163016, "2017": 71223}, "Taiwan": {"2019": 88853, "2018": 78728, "2017": 9147}, "Asia Pacific (2)": {"2019": 47233, "2018": 36647, "2017": 26878}, "Japan": {"2019": 178502, "2018": 170282, "2017": 3565}, "United Kingdom": {"2019": 42472, "2018": 37038, "2017": 33837}, "Netherlands": {"2019": 44065, "2018": 39684, "2017": 32478}, "Malaysia": {"2019": 33748, "2018": 28165, "2017": 15177}, "Singapore": {"2019": 19417, "2018": 17267, "2017": 15565}, "Italy": {"2019": 15551, "2018": 17905, "2017": 15376}, "Hungary": {"2019": 12245, "2018": 13254, "2017": 18856}, "Mexico": {"2019": 44267, "2018": 23915, "2017": 22424}, "Other Countries (2)": {"2019": 1281, "2018": 2278, "2017": 4131}, "Total Non-United States (3)": {"2019": 1089838, "2018": 967048, "2017": 559088}, "": {"2019": 1382818, "2018": 1200181, "2017": 757338}}
other_countries_2019 = df["Other Countries (2)"]["2019"]
other_countries_2018 = df["Other Countries (2)"]["2018"]
answer = ( other_countries_2019 - other_countries_2018 ) / other_countries_2018 * 100.0