1. Delta Inc. is considering a one-off customer order that requires a material called Plutech, of which it currently holds 345 kg in its inventory. This inventory cost $4.75 per kg. The one-off order requires 825 kg of Plutech. If the current inventory is not used for this order, it will be sold for $3.15 per kg. The current purchase price of Plutech is $5.25 per kg.. What is the total relevant cost of Plutech for the one-off order?

1. $3,606.75
2. $4,158.75
3. $4,331.25