並前往https://savings.pixnet.net/blog/post/21879395-%E9%8A%80%E8%A1%8C%E5%84%B2%E8%93%84%E5%AD%98%E6%AC%BE%E5%AE%9A%E5%AD%98%EF%BC%9A%E9%9B%B6%E5%AD%98%E6%95%B4%E4%BB%98irr%E5%80%BC%E8%A8%88%E7%AE%97excel
