Complete the chart and answer the questions below. Round each percentage to one decimal place, each dollar amount to two decimal places if necessary. When asked about the ratios use abbreviations $($ROS$,$ ROA, ROE$)$

$\backslash$table$[[$$ in Millions,Formula,$\backslash$table$[[$YHOO$],[12/31/2011]],\backslash$table$[[$COST$],[8/29/2011]],\backslash$table$[[$CAT$],[12/31/2011]]],[$Sales revenue,,$4,984,88,915,60,138],[$Net income,,$1,049,1,462,4,928],[$Assets$,,14,783,,81,446],[$Liabilities$,,2,242,14,759,],[$Stockholders$\text{'}$ equity,,,$12,002,12,883],[$ROS$,$NI $/$ Sales Revenue,,$1\mathrm{.}64\%,8\mathrm{.}19\%$