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,$1,800,2,300,3,300],[$Added processing costs per unit,$$13\mathrm{.}00,$$$17\mathrm{.}00,$$$18\mathrm{.}00$