Shows whether the History difference value in a given draw and in given Level is greater or lower than the History difference value in previous draw. A plus sign (+) means the History difference is greater than the previous value, a minus sign (-) means the difference is lower. An equals sign (=) means the History difference is the same as in previous draw.
These statistics are available in summary form and also as per-ticket properties.
See also History Difference Movement filter and History Sum Movement statistics.