Deluxe $9 Step 1 At workstation X (15 min) Raw materials Super Duper $4 Raw materials Step 1 at workstation X (30 min) Step 2 at workstation Y (15 min) Finish with Step 3 at workstation Z (15 min) Step 2 at workstation Z (10 min) $6 Purchased part Finish with Step 3 at workstation Y (5 min) $6 Purchased part