Looking at 2017 financial statements and comparing ratios of Tiffany (TIF) and Signet Jewelers (SIG) Signet owns Kaye Jewelers, Zales, Jared Galleria of Jewelry among other retail jewelers

I need assistance in calculating gross margin %, EBITDA, EBITDA margin, net income margin, S,G&A as a percent of sales, Inventory turns, inventory days, and capex per store for both. These calculations are need for bothTiffany and Signet Jewelers

Comparing the ratios of TIF and SIG, what can be said about these two companies? Such as product pricing, marketing strategy, condition of stores, etc.