The required volume sales in order to fulfill a target after-tax profit of $17,000 is 1788 units.
Given,
x = number of units sold.
Revenue function:
R(x) = selling price per unit × number of units sold.
R(x) = 50.x
Cost function:
C(x) = variable cost + fixed cost
= variable costs per unit × number of units sold + fixed cost
= 10.x + 50,000
Gross profit function:
P(x) = R(x) - C(x)
P(x) = 50x - (10.x + 50,000)
P(x) = 40x - 50,000
Net profit = (1 - tax rate) × Gross profit
NP (x) = (1 - 0.21) × (40x - 50,000)
NP(x) = 0.79 × (40x - 50,000)
NP(x) = 31.6x - 39500
17,000 = 31.6x - 39,500
31.6x = 56,500
x = 1787.97 = 1788
Hence, the company needs to sell 1788 units to fulfill the target
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