gwapoko321
Present reading (submeter) - Previous reading (submeter) = A (kWh consumed by submeter user for the billed month)
then,
Total Amount Due (your Meralco bill) ÷ Total Billed kWh (indicated in your Meralco bill) = B (Rate)
Therefore...
Lugi talaga kung multiply mo lang sa kwh, may mga ibang charge pa kasi. Yun sayo lang lang multiply mo then add mo sa kanya lahat ng ibang charge kasi sya yun nakiki kabit lang pero kung generous ka hatian mo haha