Answer:
BEP units 6,750
It needs to sale 6,750 to break-even
Step-by-step explanation:
First, we calculate the new contribution margin:

sales price 24
new variable cost 14
contribution margin 10
Then we proceed with the BEP in units

fixed cost 48,600 + 18,900 = 67,500
contribution margin 10

BEP units 6,750