答案里的0.98815好像不对

NO.PZ2023061903000027 问题如下 Q. The JPY/AUspot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, anthe Australillinterest rate is 4.95 percent. If the interest rates are quoteon the basis of a 360-y year, the 90-y forwarpoints in JPY/AUwoulclosest to: A.–377.0. B.–97.7. C.98.9. B is correct. The forwarexchange rate is given by:FJPYAUSJPYAU+rJPYτ1+rAU=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.The forwarpoints are follows:100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100. forwarpoints 定义是什么，forwarpoints = forwarpri- spot price这个知识点在哪里呢？

NO.PZ2023061903000027 问题如下 Q. The JPY/AUspot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, anthe Australillinterest rate is 4.95 percent. If the interest rates are quoteon the basis of a 360-y year, the 90-y forwarpoints in JPY/AUwoulclosest to: A.–377.0. B.–97.7. C.98.9. B is correct. The forwarexchange rate is given by:FJPYAUSJPYAU+rJPYτ1+rAU=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.The forwarpoints are follows:100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100. 这道题的解答是不是漏了个括号呀？应该是1+0.0015括号的四分之一次方吧？我用计算器算出来有误差

NO.PZ2023061903000027 问题如下 Q. The JPY/AUspot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, anthe Australillinterest rate is 4.95 percent. If the interest rates are quoteon the basis of a 360-y year, the 90-y forwarpoints in JPY/AUwoulclosest to: A.–377.0. B.–97.7. C.98.9. B is correct. The forwarexchange rate is given by:FJPYAUSJPYAU+rJPYτ1+rAU=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.The forwarpoints are follows:100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100. Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100.为什么？

NO.PZ2023061903000027 问题如下 Q. The JPY/AUspot exchange rate is 82.42, the Japanese yen interest rate is 0.15 percent, anthe Australillinterest rate is 4.95 percent. If the interest rates are quoteon the basis of a 360-y year, the 90-y forwarpoints in JPY/AUwoulclosest to: A.–377.0. B.–97.7. C.98.9. B is correct. The forwarexchange rate is given by:FJPYAUSJPYAU+rJPYτ1+rAU=82.421+0.0015903601+0.049590360=82.42×0.98815=81.443.The forwarpoints are follows:100 × (F × S) = 100 × (81.443 – 82.42) = 100 × (–0.977) = –97.7.Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100. 解析里的这句话是什么意思？Because the spot exchange rate is quotewith two cimplaces, the forwarpoints are scale100.为什么那个第一步算出来的81.443不是正确答案呢？题目不就是让求the 90-y forwarpoints in JPY/AU吗？