Selected financial information $($in millions, except per$-$share information$)$ is available for CIBC at October $31$: $($a$)$ Calculate the $(1)$ payout, $(2)$ dividend yield, $(3)$ basic earnings per share, and $(4)$ return on common shareholders' equity ratios for the common shareholders for $2021$ and $2020.$ For the payout ratio, include all

dividends in the numerator of the payout ratio. $($Round basic earnings per share to $2$ decimal places, e$.$g$.5\mathrm{.}24.$ Round payout ratio, dividend yield and return on common shareholders' equity to $1$ decimal place. e$.$g$.5\mathrm{.}2\%.)$