The number of Thailands poor declined from 7.1 million persons in 2014, 10.5 percent of the population, to 4.9 million persons in 2015, or 7.2 percent of the population. Thailands 2014 poverty line was defined as an income of 2,647 baht per month. For 2015 it was 2,644 baht per month. According to the National Economic and Social Development Board (NESDB) in a report entitled, Poverty and Inequality in Thailand, the countrys growth in 2014 was 0.8 percent and 2.8 percent in 2015. NESDB Secretary-General Porametee Vimolsiri said that the growth was due to the effect of governmental policies.  The report also noted that 10 percent of the Thai population earned 35 percent of Thailands aggregate income and owned 61.5 percent of its land.
Question: How many more million people were poor in 2014 than 2015?
Answer: 2.2