Final answer:
The crossover point between Proposal A and Proposal B is at 8,600 units.
Step-by-step explanation:
In order to find the crossover point between Proposal A and Proposal B, we need to set their total costs equal to each other and solve for the number of units. Let x represent the number of units. The total cost for Proposal A is given by: $68,000 + $11x. The total cost for Proposal B is given by: $25,000 + $16x. Setting these two equal to each other, we get:
$68,000 + $11x = $25,000 + $16x
Subtracting $11x and $25,000 from both sides, we have: $43,000 = $5x
Dividing both sides by $5, we get: x = 8,600
The crossover point between the two options is at 8,600 units.