It is 211. What it gets rounded to will depend on the degree of rounding.
It is: 210/387*100 = 54.3% rounded to 1 decimal place
210
210
210
210
210
206 rounded to the nearest 100 is 200. Rounded to the nearest ten is 210.
210
200
210
No need; it is already rounded.
207 is 210 when rounded to the nearest ten