**0.5:** (60 x $480) + (80 x -$20) + (40 x -$500) = $28,800 - $1,600 - $20,000 = **$7,200** - **0.7:** (30 x $480) + (20 x -$20) + (70 x -$500) = $14,400 - $400 - $35,000 = **-$21,000**