PT. X produces concrete blocks, bricks, and roofing tile. The controller prepared the following income statements: Blocks Bricks Tile Total $500 $800 $150 $1,450 480 140 $250 $320 $ 30 S 580 250 870 Sales revenue Less: Variable expenses Contribution margin Less direct fixed expenses: Advertising Salaries Depreciation Total Segment margin Less: Common fixed exp. Operating income $ 10 37 53 $100 $150 $ 10 $ 10 40 35 40 10 $ 90 $ 55 $230 S-45 $ 30 112 103 $ 245 $ 335 125 $ 210 Required: Prepare computation to evaluate which decision should be chosen