WP Corporation produces products $x,Y,$ and $Z$ from a single raw material input in a joint production process. Budgeted data for the next month is as follows:

$\backslash$table$[[$Units produced,Product X Product Y Product Z$,,],[$Per unit sales value at split$-$off,$2,400,2,900,3,900],[$Added processing costs per unit,$$19\mathrm{.}00,$$$21\mathrm{.}00,$$$24\mathrm{.}00$