Answer:
52.34
Explanation:
[tex]target \: cost = sales \ price \div (1+return)\\67 \div (1+.28) = 52.344375 = 52.34[/tex]
The target cost should be unit cost which satisfies the expected return.
In this case, if unit cost is higher than 52.34 the return will be lower than 28%
This is the number Shimada will engage the calculator project. If the unit cost doesn't get to this level through development and investing in a certai dead-lines, the projec will be discontinued.