It will not be exact, but a very close approximation. It will be more exact with a high total (>11,000) It may get stuck at multiples of 301 in Turbo Mode because of the clone limit.
The math: •If the radius of the circle is 1 unit, then its area is pi units^2 •The square would be 2x2 units, and have an area of 4 units^2 •Therefore, the ratio of the circle's area to the square's area (and the ratio of dots in the circle to the total number of dots) is pi/4 •pi/4=insidecircle/totaldots •pi=insidecircle/totaldots*4