By Daniel Kline The fast-food chain plans new takes on its familiar classics, but they will cost you. When times get tough people turn to the familiar and cheap. McDonald’s (MCD) – Get McDonald’s Corporation Report certainly counts as both even if its prices have increased, according to CFO Kevin Ozan’s comments during the chain’s second-quarter earnings call. “Moving to the U.S. We posted positive comps across all dayparts in the second quarter, led by breakfast. Overall comp sales were up nearly 4% due to higher average check supported by strategic price increases,” he said. McDonald’s has n…