An arithmetic estimate, not legal advice. Enter the wage the award is based on and the service dates.
Usually the last wage including basic pay and fixed allowances such as housing and transport, per the contract. Check your contract and the authority; this tool works on the figure you enter.
No. It is an estimate on the formula most widely published for Saudi private-sector contracts. Contracts and regulations differ and change; the authority is the reference.
Yes — the Payroll app estimates the award from each employee’s record, with rules you can set to your own policy.