Martin Sells a Number of Different Designs of Shoes Each Pair of Shoes Sells for $40 Per Pair

Martin sells a number of different designs of shoes. The following is the volume sold in December and the estimate for one line of shoes for the first three months of the year:

$$\begin{array} { | l | r | } \hline & \begin{array} { r } \text { Number } \\\text { of shoes }\end{array} \\\hline \text { December } & 500 \\\hline \text { January } & 550 \\\hline \text { February } & 450 \\\hline \text { March } & 500 \\\hline\end{array}$$
Each pair of shoes sells for $40 per pair. 20% of sales are for cash with the remainder being collected in the following month.
a. Prepare the sales budget for the January to March period.
b. Prepare a schedule of cash collections for the January to March period.