1 = 100 2 100 3 = 100
100
Z AX A + X
FOB CFR CIF
P n r n t n x = + = 1 1 1 % t n = 1 n
= FOB
= = 100% 100% 1 100% = 100%
1 1 2 3 1 1 2 1
1b 11 29
1990 CFR 1980 C F FOB CIF