By the 1700s, what percentage of the workers were African slaves?

Explanation:

though it is impossible to give accurate figure,some historians have estimated 6 to 7 million slaved people...

By 1700 there were 27,817 enslaved Africans in British North America. In 1740, there were 150,024. By 1770, the number of slaves had grown to 462,000, about one-fifth of the total colonial population.

Explanation:

(i know that this isn't exactly what you might be looking for but never the less i hope this helps you in some way)

i have to go with a for this one

you should think about the answers you give and expect the same form your questions.