Ramirez Corporation sells two types of computer chips. The sales mix is 30% (Q-chip) and 70% (Q-chip plus). Q-Chip has variable costs per unit of 60$ and a selling price of 100$. Q-Chip plus has variable costs per unit of 70$ and a selling price of 130$. Ramirez's fixed costs are 540,000$. How many units of Q-Chip would be sold at the break-even point