Two carried-forward constants. Every differential is multiplied by 0.98verify and inland freight insurance loads a fixed R$ 2,367verify insured value. Both were unlabelled in the workbook. Confirmed intentional; economic basis still to be written down.

Sourced, not typed. Load in/out, warehouse service, freight and fobbing resolve from the reference tables. Nine warehouses carry a complete tariff and a port lane — POSTO CAIS is all zeros and is excluded rather than silently priced at nothing.

Periods derive from first notice day. finance = (FND − payment) + 20 and carrying = FND − delivery. The workbook computed both, then let anyone type over them — its own cells read “sempre em branco”. Untick to override; the hint tells you what you overrode.