In connection with your audit of the Karen Corporation for the year ended December 31, 2018, you noted, that the company purchased for P10,400,000 mining property estimated to contain 8,000,000 tons of ore. The residual value of the property is P800,000. Building used in mine operations costs P800,000 and have estimated life of fifteen years with no residual value. Mine machinery costs P1,600,000 with an estimated residual value P320,000 after its physical life of 4 years. Following is the summary of the companys operations for the first year:

Tons mined 800,000 tons

Tons sold 640,000 tons

Unit selling price per ton P4.40

Direct Labor 640,000

Miscellaneous mining overhead 128,000

Operating expenses (excluding depreciation) 576,000

Inventories are valued on a first-in, first-out basis. Depreciation on the building is to be allocated as follows: 20% to operating expenses, 80% to production. Depreciation on machinery is chargeable to production.

Required: Based on the above, answer the following:

1. How much is the depletion for 2018?
2. Total inventoriable depreciation for 2018?
3. How much is the Inventory as of December 31, 2018?
4. How much is the cost of sales for the year ended December 31, 2018?
5. How much is the maximum amount that may be declared as dividends at the end of the companys first year of operations?