The formula to calculate the Depletion Cost Per Unit (DCPU) is:
\[ DCPU = \frac{TC - RV}{TU} \]
Where:
Let's say the total cost of the resource is $1,000,000, the residual value is $100,000, and the total number of units is 500,000. Using the formula:
\[ DCPU = \frac{1,000,000 - 100,000}{500,000} \]
We get:
\[ DCPU = 1.80 \text{ dollars per unit} \]
So, the depletion cost per unit is $1.80 per unit.