1 p Firm A's ROIC was 18% and Firm B's ROIC was 9%. Additionally, Firm A's return on sales was 5% and its capital turnover was $3.60. And Firm B's return on sales was 2.5% and its capital turnover was $3.60. Which ratio would you likely calculate next to understand why Firm A's profitability was higher than Firm B's? (Select one.) O COGS sales average NWC sales sales average IC NOPAT sales average net PPE sales