What the result means
Splitting a bill starts with determining the actual amount owed: the bill amount, plus VAT if not already included, plus tip (usually calculated on the post-tax amount — what you're actually paying, not the pre-tax price). This total is divided equally among the group. When paying cash, an exact split often produces impractical fractions (like 82.5 SAR), so the calculator lets you round each person's share up to the nearest riyal or 5 riyals for easier payment, while showing the small surplus that rounding produces.
Recommendation
Check the restaurant's menu or the nature of the expense before choosing the tax option — most Saudi restaurants show VAT-inclusive prices, but some commercial invoices or certain services may show the pre-tax price and add it on the final bill. If you're splitting among a large group, rounding to the nearest 5 SAR usually makes collecting cash faster and easier than trying to collect precise fractions from everyone.
