Can you help me solve this problem? What would the steps be to get the outcome?

Thanks

A merchandise company reported the followi results for the year: Number of units sold Selling price per unit 1,000 Variable manufacturing costs per unitS120 Variable selling cost per unit Total fixed sellin8 costs $90 $10,000 Variable administrative cost per unit $50 Fixed administrative costs What is the contribution margin? $100,000 $140,000 $230,000 $400,000 $30,000 YOUR ANSWER CORRECT ANSWER