Answer:
b. $130,000
Step-by-step explanation:
The contribution margin income statement is presented below
Particulars Total company East West
Sales $1,430,000 $380,000 $1,050,000
Less: variable expense -$741,000 -$205,000 -$536,000
Contribution margin $689,000 $175,000 $514,000
Less: fixed expense -$246,000 -$45,000 -$201,000
Segment margin $443,000 $130,000 $313,000
Less: common fixed expense $310,000
Operating income $133,000