When units × rate does not equal the printed amount

A small identity with useful evidence

Some payslip lines print both a number of units and a rate. When both are available, Broker Lens checks the simple identity units × rate = amount for that line. The comparison uses the printed figures and a small two-cent tolerance for ordinary rounding.

If the multiplication does not agree with the amount shown, the result is an arithmetic flag. The message names the line, the computed amount, and the amount printed on the payslip so you can inspect the original document.

What the flag means

The flag says that the figures on that line do not reconcile within the check's tolerance. It does not say why. A line can need review because of a parsing mistake, an unusual payroll convention, a value that was entered incorrectly, or a document that needs clarification.

That is why the next step is human review, not a verdict. Compare the source PDF with the extracted units, rate, and amount. If one value was read incorrectly, correct it and run the check again.

When the check cannot run

The identity needs both units and rate to be printed and extracted for the same line. If either value is absent, there is no honest multiplication to perform. The tool leaves that line unchecked instead of inventing a number.

The same rule applies when the payslip contains an unrecognised line that prevents the wider arithmetic from being reconciled safely. A missing check is different from a clean result: it tells you which evidence still needs attention.

A practical review sequence

1. Open the source page named by the flag.
2. Read the line description, units, rate, and printed amount together.
3. Check whether the payroll system uses a convention that explains the figures.
4. Correct an extraction error or ask for clarification when the source remains inconsistent.

The useful outcome is a traceable question about one line, with the original evidence still in view.