Personal Electronix sells computer tablets and MP3 players. The business is divided into two divisions along product lines. CVP income statements for a recent quarter's activity are presented below. Tablet Division MP3 Player Division Total Sales $919,800 $540,200 $1,460,000 Variable costs 671.454 302,512 973,966 Contribution margin $248,346 $237,688 486,034 Fixed costs i 136,489 Net income $349,545 (a) Determine sales mix percentage and contribution margin ratio for each division. Sales Mix Percentage Tablet division MP3 Player division. Tablet division MP3 Player division eTextbook and Media % Contribution Margin Ratio % %