Wikipedia on the demographics of Brooklin:
As of the census of 2000, there were 841 people, 371 households, and 244 families residing in the town. The population density was 18.1/km² (46.8/mi²). There were 697 housing units at an average density of 15.0/km² (38.8/mi²). The racial makeup of the town was 98.45% White, 0.12% African American, 0.12% Native American, 0.59% Asian, 0.36% from other races, and 0.36% from two or more races.
A little multiplication reveals that 0.12 percent of 841 is approximately 1.0092, so I'm going to assume that the town has one black resident who comprises .118906 percent of the total population.