Answer:
Residual Income = Net Income minus (target income)
Target income = rate of returns x operational Assets
A.
Cameras and camcorders investment centre
Residual income = 6,900,000 - (12% x 29,000,000)
= $3,420,000
B.
Phones and communications investment centre
Residual income = 1,548,000 - (12% x 12,900,000)
= $0
C.
Computers and accessories investment centre
Residual income = 800,000 - (12% x 16,600,000)
= -$1,192,000