The Following Information About Morgantown Avionics' Two Altimeter Models Is

The following information about Morgantown Avionics' two Altimeter models is provided: $$\begin{array} { | l | r r | } \hline & \text { Budgeted } & \text { Actual } \\\hline \text { Analog model sales in units } & 25,000 & 25,900 \\\hline \text { Digital model sales in units } & 15,000 & 13,500 \\\hline \text { Analog model budgeted contribution margin } & \$ 70 & \\\hline \text { Digital model budgeted contribution margin } & \$ 100 & \\\hline \text { Budgeted average unit contribution margin } & \$ 81.25 & \\\hline \text { Total contribution margin } & \$ 3,250,000 & \$ 3,246,200 \\\hline\end{array}$$
Calculate the sales mix variance.