roi-calculator

Compute campaign ROI from spend, conversion, and revenue inputs — channel-level ROI/ROAS/CPA/CPL, blended totals, five-model attribution comparison (last-touch, first-touch, linear, time-decay, position-based), LTV payback periods, industry benchmark ratings, and 2-3 modeled budget-reallocation scenarios, packaged as an executive-ready report. Triggers on "/digital-marketing-pro:roi-calculator", "what's the ROI on this campaign", "compare ROAS across channels", "is our CAC sustainable against LTV", "where should we shift budget". Runs roi-calculator.py, reads industry benchmarks for the brand's vertical, and logs results to the campaign tracker for period-over-period trend comparison.