How to figure overtime pay monthly. (Assuming salary of 8,000 baht).
(/ represents division, * represents multiplication).
daily wage is 8,000 / 30 = 266.66 baht / day. OT1 hours. each wage is 266.66 / 8 hours. = 33.33 baht / hour.
OT1. 5 hrs. each working day,
overtime (1.5 times), 266.66 / 8 * 1.5 = 49.99 baht / hour.
OT3 audience. each overtime, vacation / holidays (3 times), 266.66 / 8 * 3 = 99.9 baht / hour
O.T.3 ชม.ละ ค่าล่วงเวลาวันหยุด/นักขัตฤกษ์ (3 เท่า) 266.66/8*3 = 99.9 บาท/ชม.