Iran abruptly raised prices as much as 300 percent for a variety of staples such as cooking oil, chicken, eggs and milk on Thursday. Scores of alarmed Iranians waited in long lines to snatch up bundles of food and emptied supermarket shelves across the country in the hours before the price hike took effect. Panicked shoppers raided stores and stuffed basic goods into large plastic bags, according to footage shared widely on social media. Lines in Tehran snaked out of grocery stores late Wednesday. On Thursday, Iran’s currency dropped to a low of 300,000 rial to the dollar. Internet disruptions…