Vaughn Manufacturing acquired a tract of land containing an extractable natural resource. Vaughn is required by the purchase contract to restore the land to a condition suitable for recreational use after it has extracted the natural resource. Geological surveys estimate that the recoverable reserves will be 2,580,000 tons, and that the land will have a value of $960,000 after restoration. Relevant cost information follows: Land $6,400,000 Estimated restoration costs 1,200,000.

If Vaughn maintains no inventories of extracted material, what should be the charge to depletion expense per ton of extracted material?

a. $1.60

b. $1.75

c. $2.00

d. $1.90