Answer:
regular sales price $270, total sales per month = 10 units
basic manufacturing costs:
variable cost per unit $120
fixed costs $3,000
if further processed, sales price $300
if further processed:
additional variable cost $20 per unit
additional fixed costs $400
At what sales price level would the new, improved radio begin to improve operating earnings?
sales price $270
revenue $2,700
variable costs -$1,200
fixed costs -$3,000
operating income -$1,500
sales price $300
revenue $3,000
variable costs -$1,400
fixed costs -$3,400
operating income -$1,800
Since relevant costs increase by $60 per unit (= $20 variable costs and $400/10 in fixed costs), then the sales price should increase more than $60 in order to lower the company's losses.
If the company wants to make a profit, then it should increase its sales price by more than $180 per unit. If the radio is processed further, in order to break even its sales price should be $480 per unit.
sales price $480
revenue $4,800
variable costs -$1,400
fixed costs -$3,400
operating income $0
Any sales price above $480 will result in an operating profit.