In: Accounting
The present value of the costs of carrier A = $ 200 + $ 60
1.041
+ $ 60
1.042
+ $ 60
1.043
+ $ 60
1.044
+ $ 60
1.045
+ $ 60
1.046
+ $ 60
1.047
+ $ 60
1.048
+ $ 60
1.049
+ $ 60
1.0410
+ $ 60
1.0411
+ $ 60
1.0412
+ $ 60
1.0413
+ $ 60
1.0414
+ $ 60
1.0415
+ $ 60
1.0416
+ $ 60
1.0417
+ $ 60
1.0418
+ $ 60
1.0419
+ $ 60
1.0420
+ $ 60
1.0421
+ $ 60
1.0422
+ $ 60
1.0423
+ $ 60
1.0424
The present value of the costs of carrier A = $ 1,114.82
The present value of the costs of carrier B = $ 100 + $ 70
1.041
+ $ 70
1.042
+ $ 70
1.043
+ $ 70
1.044
+ $ 70
1.045
+ $ 70
1.046
+ $ 70
1.047
+ $ 70
1.048
+ $ 70
1.049
+ $ 70
1.0410
+ $ 70
1.0411
+ $ 70
1.0412
The present value of the costs of carrier B = $ 1,513.91
Thus you should choose carrier A because the present value of the costs of carrier A is less than the present value of the costs of carrier B.