1. I think the formula at part of factor if not correct krub. Could you please review the formula again. It’s difficult to explain here. I will tell you tomorrow krub
2. I have a question about standby. For example, if there is cat-1 in the morning and contractor can’t do the work and they start work in the afternoon. In the end of the day, they can’t completed work to meet minimum charge, Do we need to pay them minimum charge + stand by in the morning or just minimum charge krub.