Computing Return on Equity and Return on Assets

The following table reports financial statement information for Meta $($Facebook$\text{'}$s parent company$).$

Required

a$.$ Compute the following ratios for the two most recent years. NOTE: Round any intermediate calculations to the nearest whole dollar amount.

b$.$ Which of the following best explains the change in ROA during FY$3?1.$ The company's profitability weakened considerably.