international accounting company royal dutch shell europe. where can i find info for questions below. i looked up ifrs and GAAp standards the formulas are basically the same. not sure if to do the 5 year trend ratio analysis and where to find info.

3) Ratio Analysis - Locate the note in the most recent financial statements that reconcile IFRS to U.S. GAAP. If results are available for both U.S. GAAP and IFRS, calculate the following ratios using both standards and explain any differences. If results are available using only one standard, prepare a five-year trend analysis for each ratio, and explain the results of your analysis. Ratios to be calculated: i. Current Ratio ii. Quick (Acid-Test) Ratio iii. Gross profit margin iv. Net profit margin v. Return on equity (ROE) vi. Return on assets (ROA) vii. Leverage ratio: liabilities/assets