The metric type "42 - Rate of births of new enterprises per 10,000 resident population aged 16 and above" value of 42.2 enterprises per 10,000 people for area Boston (District) 2017 is calculated from:
240 divided by 56,846 multiplied by 10000.0
"540 - Count of births of new enterprises" divided by "1754 - Population, all persons aged 16 and over" multiplied by 10000.0