I need help figureing out the question marks....how to figure depreciation after 7 days

Disposal of Fixed Asset

Equipment acquired on January 8, 20Y1, at a cost of $470,000, has an estimated useful life of 12 years and an estimated residual value of $103,400.

a. What was the annual amount of depreciation for the years 20Y1, 20Y2, and 20Y3, using the straight-line method of depreciation? Round annual depreciation to the nearest dollar and use this amount in your follow-on calculations.

Depreciation Expense

20Y1 $ 30500

20Y2 $ 30500

20Y3 $ 30500

b. What was the book value of the equipment on January 1, 20Y4?

$ 378350

For decreases in accounts or outflows of cash, enter your answers as negative numbers. If no account or activity is affected, select "No effect" from the dropdown and leave the corresponding number entry box blank.

c. Assuming that the equipment was sold on January 7, 20Y4, for $211,500, illustrate the effects on the accounts and financial statements of the sale.

Statement of Cash Flows Balance Sheet Income Statement

Assets = Liabilities + Stockholders' Equity

Cash + equipment - accumulated depreciation-equipment = no effect + retained earnings

$211500 ($470,000) ? - ?

Jan. 7. Jan. 7.

Statement of Cash Flows Income Statement

Investing: $211500 ?

d. Assuming that the equipment was sold on January 7, 20Y4, for $587,500 instead of $211,500, illustrate the effects on the accounts and financial statements of the sale.

Statement of Cash Flows Balance Sheet Income Statement

Assets = Liabilities + Stockholders' Equity

Cash + equipment - accumulated depreciation equipment = no effect + retained earnings

$587500 ($470,000) ? ---- ?

Jan. 7. Jan. 7.

Statement of Cash Flows Income Statement

Investing: $587500 ?