Scoring is between 200 (Minimum) and 800 (Maximum) with 10-point increment for Quantitative and Verbal section combined. About 2/3rd of the test takers score between 400 and 600. The Quantitative and the Verbal scores are scaled out of 51 and range between 6 and 51.
The AWA section is scored between 0 and 6 with 0.5 point increments. An AWA score of 4.0 + is a decent score.