Required a. Compute the ratio of net income to sales for each company. Rank the companies on the basis of this ratio. Note: Round percentage to one decimal point (for example, round 18.566% to 18.6% ). b. Compute net cash flows from operating activities as a percentage of sales. Rank the companies on the basis of this ratio. Note: Round percentage to one decimal point (for example, round 18.566% to 18.6% ). c. Compute net cash flows from investing activities as a percentage of sales. Rank the companies on the basis of this ratio. Note: Round percentage to one decimal point (for example, round 18.566% to 18.6% ). Note: Rank ratios based on the numeric amount of the percentage ignoring whether the number is negative or positive