Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2xM/ Esercizi: http://www.khanacademy.org/exercises?exid=percentage_word_problems_1 Traduzione in Italiano del video Taking percentages http://www.youtube.com/watch?v=_SpE4hQ8D_o http://www.khanacademy.org/video/taking-percentages?playlist=Algebra Help us caption & translate this video! http://amara.org/v/B2xM/