Answer: Incremental revenue =360
Given:
N=600 (number of defective units)
P1=$2 (price if not rebuilt)
P2=$5 (price after rebuilt
X=.60+1.0+.80=2.4 (incremental costs)
R1=600(2)=1200
R2=600(5)-600(2.4)
R2=3000-1440
R2=1560
Incremental revenue is computed as:
R2-R1
1560-1200
360