Read this article and answer this question According to the 2014 census, 2,720,377 answered to the question on "language usually used for communication". 2,138,964 people or 78.63% of the inhabitants of Moldova (proper) have Moldovan/Romanian as first language, of which 1,486,570 (53%) declared it Moldovan and 652,394 (23.3%) declared it Romanian. 394,133 people or 14.1% have Russian as language of daily use, 73.802  or 2.6% – Ukrainian,  74.167 or 2.6% – Gagauz,  26,577 or 0.9% – Bulgarian, and 12,734 or 0.5% – another language.
How many percent of the inhabitiants of Moldova do not have Moldovan/Romanian as their first language?
21.37