--Reward Zone credit-card holders to get 5% back in towards future purchases, up from 4%
--Move is latest in CEO turnaround plan to reverse sales slide
--Follows other attempts to throw off perception of Best Buy as showrooming victim
Best Buy Co. BBY +12.09% is increasing how much it rewards customers who use its loyalty-program credit cards by 25%, part of its chief executive's plan to turn around the struggling retailer and increase purchases of higher-priced items.
Starting Sunday, Best Buy will give 5% back in rewards....