Gardner Furniture Company produces two kinds of chairs: an oak model and a chestnut wood model. The oak model sells for $60 and the chestnut wood model sells for $100. The variable expenses are as follows: Expected sales in units next year are: 5,000 oak chairs and 1,000 chestnut chairs. Fixed expenses are budgeted at $135,000 per year. The yearly break-even point in total sales for the expected sales mix is: $270,000 $300,000 $485,000 $500,000 The company's overall contribution margin ratio for the expected sales mix is: 40%. 45% 50% 60%