A payroll auditing web app that computes night premium pay from CSV punch logs. Born from an AI-engineered prototype and ported to deterministic code for production accuracy.
●●●Shift Differential Calculator — Google Apps Script
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demo-punch-log.csv ready
Pre-loaded demo dataset
CSV only
Simplified demo — the real tool uses Google Sheets for persistent storage, Google Apps Script for server-side processing, and SheetJS for Excel export. This demo runs the exact same calculation engine with deterministic data.