can you explain calculations behind the sums please and theory

Rev enues - COGS - Depreciation EBIT EBIT (1-0 - Change in NWC FCFF Cost of Equity After-tax Cost of Debt Abbreviated Solutions for Calculation Questions Grumman Northrop Inde dent In "dent S3,281 S2,920 S 74 S287 S187 S16 S171 12.50% 5.53% 11.38% S2,681 = 7,479 - (2681 + 3199) = $1599 S4,620 $4,043 $200 $378 S245 S22 12.50% 5.53% 11.98% $3,199 Price to Eamings 13.04 15.36 (340) 14 (take only first two) 4.00 Combined With ner $7,901 $6,795 $274 $832 $541 $38 $503 12.50% 5.53% 11.73% $7,479 WACC Firm Value Value of synergies Abercrombie & Fitch AnnTaylor Stores Corp. Limited Brands Inc. lagia eamings & sales Implied Enterprise Value Implied Equity Value share EV to Sales 1.58 1.41 0.96 832817 5.28 (Note: Final pricing justification and discussion are still required)