Hi
If you refer the minimum wages gazzatte, a clause is given as " to arrive at a daily wage, the monthly wages shall be divided by 26".
Calculating per day wage is like . Gross/fixed salary/26 = one/per day wage
Calculating per hour wage is like . one/per day wage/ 8 (8 is the no of working hours in a day)
Gross salary is fixed or total salary.
Hope this will gives you a better understanding!!!!