I need help with researching these following questions for amazon company:

1.What is the % change and absolute $ change of your total current assets and total current liabilities for the last two years? What is the biggest reason for the change in both categories?

2.How does your company account for Inventory? Are there any other disclosures impacting any current asset or current liability accounts?

3.In looking at the liquidity of your company, calculate the present year and prior year's current ratio and acid test ratio. How would you evaluate the company's liquidity over the last year?

4.In looking at the overall management of your company's operating assets, calculate the present year and prior year's Accounts receivable and Inventory turnovers. How would you evaluate the company's overall management of their current assets over the last year?