Riverbed Hammocks is considering the purchase of a new weaving machine to prepare fabric for its hammocks. The machine under consideration costs $56,188 and will save the company $8,000 in direct labor costs. It is expected to last 10 years. Click here to view the factor table. (a) Calculate the internal rate of return on the weaving machine. (Round answer to 0 decimal place, e.g. 15.) Internal rate of return % (b) If Riverbed uses a 9% hurdle rate, should the company invest in the machine? APPENDIX 9.1 Present value of $1 received in n periods. Periods 4% 5% 6% 7% 8% 9% 10% 11% 12% 13% 14% 16% 18% 20% 1 2 3 4 5 0.9615 0.9246 0.8890 0.8548 0.8219 0.9524 0.9070 0.8638 0.8227 0.7835 0.9434 0.8900 0.8396 0.7921 0.7473 0.9346 0.8734 0.8163 0.7629 0.7130 0.9259 0.8573 0.7938 0.7350 0.6806 0.9174 0.8417 0.7722 0.7084 0.6499 0.9091 0.8264 0.7513 0.6830 0.6209 0.9009 0.8116 0.7312 0.6587 0.5935 0.8929 0.7972 0.7118 0.6355 0.5674 0.8850 0.7831 0.6931 0.6133 0.5428 0.8772 0.7695 0.6750 0.5921 0.5194 0.8621 0.7432 0.6407 0.5523 0.4761 0.8475 0.7182 0.6086 0.5158 0.4371 0.8333 0.6944 0.5787 0.4823 0.4019 6 7 8 9 10 0.7903 0.7599 0.7307 0.7026 0.6756 0.7462 0.7107 0.6768 0.6446 0.6139 0.7050 0.6651 0.6274 0.5919 0.5584 0.6663 0.6227 0.5820 0.5439 0.5083 0.6302 0.5835 0.5403 0.5002 0.4632 0.5963 0.5470 0.5019 0.4604 0.4224 0.5645 0.5132 0.4665 0.4241 0.3855 0.5346 0.4817 0.4339 0.3909 0.3522 0.5066 0.4523 0.4039 0.3606 0.3220 0.4803 0.4251 0.3762 0.3329 0.2946 0.4556 0.3996 0.3506 0.3075 0.2697 0.4104 0.3538 0.3050 0.2630 0.2267 0.3704 0.3139 0.2660 0.2255 0.1911 0.3349 0.2791 0.2326 0.1938 0.1615 nuBH 11 12 13 14 0.6496 0.6246 0.6006 0.5775 0.5553 0.5847 0.5568 0.5303 0.5051 0.4810 0.5268 0.4970 0.4688 0.4423 0.4173 0.4751 0.4440 0.4150 0.3878 0.3624 0.4289 0.3971 0.3677 0.3405 0.3152 0.3875 0.3555 0.3262 0.2992 0.2745 0.3505 0.3186 0.2897 0.2633 0.2394 0.3173 0.2858 0.2575 0.2320 0.2090 0.2875 0.2567 0.2292 0.2046 0.1827 0.2607 0.2307 0.2042 0.1807 0.1599 0.2366 0.2076 0.1821 0.1597 0.1401 0.1954 0.1685 0.1452 0.1252 0.1079 0.1619 0.1372 0.1163 0.0985 0.0835 0.1346 0.1122 0.0935 0.0779 0.0649 15 16 17 18 19 20 0.5339 0.5134 0.4936 0.4746 0.4564 $1 0.4581 0.4363 0.4155 0.3957 0.3769 0.3936 0.3714 0.3503 0.3305 0.3118 0.3387 0.3166 0.2959 0.2765 0.2584 0.2919 0.2703 0.2502 0.2317 0.2145 0.2519 0.2311 0.2120 0.1945 0.1784 0.2176 0.1978 0.1799 0.1635 0.1486 0.1883 0.1696 0.1528 0.1377 0.1240 0.1631 0.1456 0.1300 0.1161 0.1037 0.1415 0.1252 0.1108 0.0981 0.0868 0.1229 0.1078 0.0946 0.0829 0.0728 0.0930 0.0802 0.0691 0.0596 0.0514 0.0708 0.0600 0.0508 0.0431 0.0365 0.0541 0.0451 0.0376 0.0313 0.0261 PVn, i = (1 + i)" APPENDIX 9.2 Present value of an annuity of $1 per period. Periods 4% 5% 6% 7% 8% 9% 10% 11% 12% 13% 14% 16% 18% 20% 1 2 3 0.9615 1.8861 2.7751 3.6299 4.4518 0.9524 1.8594 2.7232 3.5460 4.3295 0.9434 1.8334 2.6730 3.4651 4.2124 0.9346 1.8080 2.6243 3.3872 4.1002 0.9259 1.7833 2.5771 3.3121 3.9927 0.9174 1.7591 2.5313 3.2397 3.8897 0.9091 1.7355 2.4868 3.1698 3.7907 0.9009 1.7125 2.4437 3.1024 3.6959 0.8929 1.6901 2.4018 3.0373 3.6048 0.8850 1.6681 2.3612 2.9745 3.5172 0.8772 1.6467 2.3216 2.9137 3.4331 0.8621 1.6052 2.2459 2.7982 3.2743 0.8475 1.5656 2.1743 2.6901 3.1272 0.8333 1.5278 2.1065 2.5887 2.9906 4 5 6 Ora 8 9 10 5.2421 6.0021 6.7327 7.4353 8.1109 5.0757 5.7864 6.4632 7.1078 7.7217 4.9173 5.5824 6.2098 6.8017 7.3601 4.7665 5.3893 5.9713 6.5152 7.0236 4.6229 5.2064 5.7466 6.2469 6.7101 4.4859 5.0330 5.5348 5.9952 6.4177 4.3553 4.8684 5.3349 5.7590 6.1446 4.2305 4.7122 5.1461 5.5370 5.8892 4.1114 4.5638 4.9676 5.3282 5.6502 3.9975 4.4226 4.7988 5.1317 5.4262 3.8887 4.2883 4.6389 4.9464 5.2161 3.6847 4.0386 4.3436 4.6065 4.8332 3.4976 3.8115 4.0776 4.3030 4.4941 3.3255 3.6046 3.8372 4.0310 4.1925 11 12 13 14 15 8.7605 9.3851 9.9856 10.5631 11.1184 8.3064 8.8633 9.3936 9.8986 10.3797 7.8869 8.3838 8.8527 9.2950 9.7122 7.4987 7.9427 8.3577 8.7455 9.1079 7.1390 7.5361 7.9038 8.2442 8.5595 6.8052 7.1607 7.4869 7.7862 8.0607 6.4951 6.8137 7.1034 7.3667 7.6061 6.2065 6.4924 6.7499 6.9819 7.1909 5.9377 6.1944 6.4235 6.6282 6.8109 5.6869 5.9176 6.1218 6.3025 6.4624 5.4527 5.6603 5.8424 6.0021 6.1422 5.0286 5.1971 5.3423 5.4675 5.5755 4.6560 4.7932 4.9095 5.0081 5.0916 4.3271 4.4392 4.5327 4.6106 4.6755 16 11.6523 10.8378 10.1059 17 12.1657 11.2741 10.4773 18 12.6593 11.6896 10.8276 19 13.1339 12.0853 11.1581 20 13.5903 12.4622 11.4699 1 $1 (1 + i)" PVAni = i 9.4466 9.7632 10.0591 10.3356 10.5940 8.8514 9.1216 9.3719 9.6036 9.8181 8.3126 8.5436 8.7556 8.9501 9.1285 7.8237 8.0216 8.2014 8.3649 8.5136 7.3792 7.5488 7.7016 7.8393 7.9633 6.9740 7.1196 7.2497 7.3658 7.4694 6.6039 6.7291 6.8399 6.9380 7.0248 6.2651 6.3729 6.4674 6.5504 6.6231 5.6685 5.7487 5.8178 5.8775 5.9288 5.1624 5.2223 5.2732 5.3162 5.3527 4.7296 4.7746 4.8122 4.8435 4.8696