Answer
For the new customer mix of 40% and upgrade customer mix of 60%
New Breakeven Point in Units = 16,500,000 / 100
New Breakeven Point in Units = 165,000 units
Work Step by Step
New Contribution Margin per Unit = (130 * 0.40) + (80 * 0.60)
New Contribution Margin per Unit = 52 + 48
New Contribution Margin per Unit = 100
New Breakeven Point in Units = Fixed Costs / New Contribution Margin per Unit