Calculating the Direct Materials Mix Variance

Mangia Pizza Company makes frozen pizzas that are sold through grocery stores. Mangia developed the following standard mix for spreading on premade pizza shells to produce $16$ giant$-$size sausage pizzas.

$\backslash$table$[[$Direct Material,Mix,Mix Proportion,SP$,$Standard Cost$],[$Tomato sauce,$13lbs,0\mathrm{.}325,$$$1\mathrm{.}40,$$$18\mathrm{.}20$