what is the Excel formula for computing Altman$$s Z$?$

$=(1\mathrm{.}4*$M$2)+(1\mathrm{.}2*$N$2)+(3\mathrm{.}1*$O$2)+(1\mathrm{.}6*$P$2)+($Q$2*1)$

$=(1\mathrm{.}2*$M$2)+(1\mathrm{.}4*$N$2)+(3\mathrm{.}3*$O$2)+(0\mathrm{.}6*$P$2)+($Q$2*1)$

$=(1*$M$2)+(1*$N$2)+(1*$O$2)+(1*$P$2)+($Q$2*1)$

$=(1*$M$2)+(2*$N$2)+(3*$O$2)+(4*$P$2)+($Q$2*5)$