Apple's quarterly revenue was down about 13 percent, dropping from $58 billion to $50.6 billion
Apple is facing new questions after its first slump in sales since 2003. Sales of the iPhone fell for the first time ever. Apple's quarterly revenue was down about 13 percent, dropping from $58 billion to $50.6 billion. Wall Street Journal financial editor Dennis Berman joins "CBS This Morning" to discuss what's behind the drop.
