Poverty-line is the level of income which a person needs to cover minimum necessities in a particular society. One is officially poor if his income below the threshold it needs to cover necessities. 46 percent Iranian people were poor under Pahlavid According to the World Bank's report, 46% of Iranian population (-60% urbans, -30% villagers) were living under poverty-line by 1977. According to the World Bank's report, the percentage of Iranian who lived under poverty-line periodically drastically decreased since the Islamic Revolution.