Please use the KMV model equation $11\mathrm{.}2$ and $11\mathrm{.}4$ and the data $($from $2021$ to $2023)$ to calculate market value of the assets $($V$)$ and the volatility of the assets $(\backslash$sigma a$)$ from $2021$ to $2023.$ MATLAB is recommended for problem solving.

$E=VN(d_1)-D{e}^{-rT}N(d_2)$

Where : $d_1=\frac{ln(\frac{V}{D})+(r+\frac{1}{2}{}_a^2)T}{{}_a\sqrt[\phantom{2}]{T}},d_2=d_1-{}_a\sqrt[\phantom{2}]{T}$ Volatility of equity $={}_e=\frac{N(d_1)V{}_a}{E}..$