$(6$ points$)$ Assume Med Corp. from the previous problem actual results included a $5\mathrm{.}0\%$ market share based on Med's total sales of the market for the current period. The estimated the total market share for sales was $6\mathrm{.}0\%$ for the MD$12,$ MD$22$ and MD$32$ products during the same period.

a$.$ The firm's market share variance based on contribution margin for the period is:

$$8,236$ Unfav

$$18,551$ Unfav

$$309,188$ Unfav

$$364,720$ Unfav

b$.$ The firm's market size variance based on contribution margin for the period is:

$$277,663$Fav

$$333,195$Fav

$$15,762$ Fav

$$1,892$ Fav