Write down your quantitative score and multiply it by 8.1. For example, if your score was 25, the overall score for this section is 202.5.
Write down your verbal score and multiply it by 8.1. For example, if your score was 30, the overall score for this section is 243.
Add together the verbal and quantitative scores. For example, 202.5 + 243 = 445.5. This final number is a rough estimate of your GMAT score.
Look for your GMAT score on the percentile chart. For example, a score of 446 places you in the 22nd percentile of all GMAT test-takers. This means that you performed better than 22 percent of test-takers, while 78 percent performed better than you.