省到水電：Bal b/f TW$6,570+TW$365=TW$6,935 Bal c/f
https://www.singtaousa.com/2024-02-23/%e7%b1%83%e7%90%83%e6%95%99%e7%b7%b4%e4%b8%8d%e9%9b%85%e7%85%a7%e9%a2%a8%e6%b3%a2%e4%b
129,483KM-2KM=129,481KM
https://tw.news.yahoo.com/%E5%8F%88-%E7%94%B7%E6%98%9F%E6%B7%AA%E8%B1%AC%E4%BB%94-%E4%BB%96-%E8%B5%B4%E6%B3%B022%E5%A4%A9%E5
https://news.ttv.com.tw/news/11401100002700W