The Tool Converts Specifications and sequence/start‑up loops counts and I/O counts into engineering hours using nested IF statements. The key mechanisms are: 1 Dynamic I/O estimation logic Input vs estimate fallback: Each quantity cell checks whether the user entered a quantity (e.g. SYS_WORKSTATIONS_QTY, CAB_IO_QTY). If the input is blank, the formula falls back to a default…