Define approval tiers as 'up to this amount, this approver', then paste purchase orders. The tool assigns each PO to the first tier whose limit covers the amount and totals the POs per approver. The tiers are whatever you enter; the tool does not know your company policy.
This tool calculates inside your browser only and sends nothing anywhere. Results are your inputs multiplied by the assumptions shown on screen. They are not accounting, tax, payroll or legal advice; your own staff and advisers make the final call.
Too much of this done by hand?
X45 automates checks like these so that they run only after a named person approves. No ISO 27001 / SOC 2, zero production customers, one operator: we state our limits first.