Best Buy has officially announced where it will be closing 50 of its big-box stores.Store locations include six in California, six in Illinois, and six in its home state of Minnesota. Best Buy has already closed two of its stores already this year, one in Kansas City and another in Scottsdale. Most of the stores will close by May 12 with the rest closing later in the summer. The location announcement comes after the electronics retailer said it would be closing some of its big-box stores, cutting 400 corporate jobs and trim $800 million in costs. Best Buy plans on opening 100 of the more profitable Best Buy mobile stores and hopes to recover from the $1.7 billion in losses from the most recent quarter.