Can someone please help me determine some ratios?

I need these for the last three years and I am so stumped. They've asked me to look at the SEC results for the last three years for Twitter. I've pulled this up, but figuring out how to properly do the following ratios is so confusing.

Thanks!

Gross profit margin.

Operation profit margin.

Net profit margin.

Total return on assets.

Net return on total assets.

Return on stockholder's equity.

Return on invested capital.

Earnings per share.

Current liquidity ratio

Working capital liquidity ratio

Total debt-to-assets ratio

Long-term debt-to-capital ratio

Debt to equity ratio

Long term debt to equity ratio

Times interest earned ratio

Days of inventory

Inventory turnover

Average collection period

Any insight is so appreciated. Thank you!