Hitunglah besarnya disposable income

gnp = 1.600 - 140 + 80 = 1.540
nnp = 1.540 - 120 = 1.420
nni = 1.420 - 90 = 1.330
pi = 1.330 - 70 + 170 = 1.430
di = 1.430 - 240 = 1.190