省到水電：Bal b/f TW$27,010+TW$365=TW$27,375 Bal c/f
Bal b/f 561 Tempos+7 Tempos=568 Tempos Bal c/f
https://youtu.be/oLB-mel1OT4?si=Dl_qDITEiSUKc88z
https://youtu.be/CEkrCFOWcN4?si=EWZk_7kGwBjB_xbq
https://youtu.be/VjDh4chCdjk?si=HKwV6MYKNPmoklEH
