201901.png201902.pdf201903.pdf201904.pdf201905.pdf201906.pdf201907.pdf201908.pdf201909.pdf201910.pdf201911.pdf201912.pdf202001.pdf202002.pdf202006.pdf202007.pdf202008.pdf202009.pdf202010.pdf202011.pdf202012.pdf
remake: 202003-05免電費
度數=(總價-257.57)/1.253