If a value is less than 200, then it should be rounded up to 200.
How do you do this in Microsoft Excel?
If you wanted everything under 200 rounded to 200, and everything else left alone:
'CELL' being the coordinate.
If you literally wanted just the range from 1-200 to be rounded to 200, and not values less than 1, as your original question specifies:
This will satisfy your stated requirements.