How can I find the net realizable value per unit. I have the

units in hand: 1,350,600,

cost per unit: 617,

cost: 833,320,200

willing to pay: 165,

cost to sell: 165*1,350,600= 222,849,000.

Realizable value per unit=?

Write down per unit= ?

Number of Units= ?

Total write down=?

I need the realizable value per unit. After that I need to find the write down per unit and number of units to find total write down.