Also, what is the contribution margin?

Below is the information on three independent companies: Zissou Gustave Tenenbaum Sales $25,000 Total variable cost $10,000 $18,000 $12,750 Total contribution margin $15,000 $3,000 Fixed cost $4,000 Profit (loss) $8,000 - $1,000 $975 Units sold 1,500 215 Price per unit $5.00 $140.00 Variable cost per unit $12.00 Contribution Margin per unit $2.00 What are Tenenbaum's Sales