Drop the two misleading series in "Effective rate & take-home % (YTD
cumulative)" — both used SUM(gross_pay) as denominator while only
counting cash deductions/net in the numerator, which understated
take-home by 25-30 pp because RSU shares are absent from the cash
deposit but present in gross. Replaced with three semantically clean
angles:
- ytd_paye_rate_pct: SUM(income_tax) / SUM(taxable_pay) — HMRC audit
rate (~41-42% in additional-rate band), kept as before.
- ytd_cash_take_home_pct: SUM(net_pay) / SUM(gross_pay - rsu_vest) —
what fraction of cash earnings hits the bank (~62-65%).
- ytd_total_keep_pct: (SUM(net_pay) + 0.53 × SUM(rsu_vest)) /
SUM(gross_pay) — true "what I actually keep" including post-tax RSU
shares (47% marginal applied to vest value), ~55-60%.
Added field overrides for clear color-coding (red/green/blue).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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