This article examines probability and possibility calculation statistics for data variables (VDOIHI), statistical methods for combined stage percentage calculation and how to do the scoring. Combined stage percentage calculation statistics is the division of one section (variable) of an experiment, observation or any measurement to the three stages of positive, negative and neutral, and the calculation of the % effect of these stages to the result. In addition, it explains how to make calculations for the same sections of an experiment, an observation or a measurement conducted or repeated. In this statistical method, ‘akp’s of the same stages of a section are combined and turned into a single stage. Akp’s that should be present and that are present in this statistical method were given the scores of -1, 0 and 1. In scorings others than akp, scores of 0 and 1 were used.