I'm having problem finding the variable expense

Crossfire Company segments its business into two regions- East and West. The company prepared the contribution format segmented income statement shown below: Total Company East West Sales Variable expenses $ 990,000 $660,000 S330,000 742,500 528,000 214,500 Contribution margin 247,500 132,000 115,500 Traceable fixed expenses 147,00056,000 91,000 100,500 76,000 24,500 Segment margin Common fixed expenses Net operating income 65,000 35,500