Each movement in the test is scored on a scale from 0 to 10, with a score of "10" being the highest possible mark and with the total maximum score for the test varying depending on the level of competition and the number of movements. A score of 10 is very rare. Therefore, if one movement is poorly executed, it is still possible for the rider to get a good overall score if the remaining movements are very well executed. The marks are added together and any errors of course deducted. To convert this score to penalty points, the average marks of all judges are converted to a percentage of the maximum possible score, subtracted from 100 and the multiplied by a co-efficient decided by the governing body.