This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
Q: Passage: At the 2011 census, there were 1,729,040 people with 906,782 households living in Budapest. Some 1.6 million persons from the metropolitan area may be within Budapests boundaries during work hours, and during special events. This fluctuation of people is caused by hundreds of thousands of suburban residents who travel to the city for work, education, health care, and special events. By ethnicity there were 1,397,851 (80.8%) Hungarians, 19,530 (1.1%) Romani people, 18,278 (1.0%) Germans, 6,189 (0.4%) Romanians, 4,692 (0.3%) Han Chinese and 2,581 (0.1%) Slovaks. 301,943 people (17.5%) did not declare their ethnicity. In Hungary people can declare more than one ethnicity, so the sum of ethnicities is higher than the total population. The city is home to one of the largest Jewish communities in Europe. 
Question: How many percent were not Han Chinese at the 2011 census? 
Answer type: Number 
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
99.7.