Describe the ethnic diversity of the English Colonies in 1775?

In 1700, there were about 250,000 Europeans and African Americans in the colonies. By 1775, that number had increased 10-fold to 2.5 million. This huge increase was due in part to a prolific birth rate and in part to a steady flow of immigrants into the country.

Explanation:

PBS is very informational might wanna check it out sometime youll fins some  interestng things out

the answer is 250 percent.