Normal passing level is 700 for all Microsoft certifications. But on some exams this exact figure can not be reached, so the limit becomes a bit higher.
1000 is the maximum exam score
From the FAQ:
Additionally, a common misperception is that you must answer 70 percent of the questions correctly in order to pass the exam because the passing score is 700; however, this is a scaled score. The actual percentage of questions that you must answer correctly varies from exam to exam and may be more or less than 70 percent, depending on the input provided by the subject-matter experts who helped us set the cut score and the difficulty of the questions delivered when you take exam.