ROI Output

Adjust the inputs to compute trips saved, time saved, and the S-tier verdict.

How the Math Works

Tripsclass = ceil((patients × items) ÷ inventory_slots). The Head Nurse's +3 inventory slots eliminate most round-trips between the Supply Closet and the patient wards.

Total traversal overhead = trips × avg_traversal_time. Time saved = (trips_current − trips_target) × avg_traversal_time.

Multiplayer scaling: when team size > 1, the effective patient load is divided across teammates, which reduces the marginal value of the Head Nurse's inventory expansion.

Verdict Logic

  • Time saved > 120 seconds per shift → "S-Tier ROI — highly recommended."
  • Time saved 60–120 seconds → "A-Tier ROI — situational for premium players."
  • Time saved < 60 seconds → "Not worth it — stick with the free class."
  • Multiplayer team ≥ 3 → verdict shifts toward "Situational" regardless of the raw number.