Net new ARR equals ARR from new business acquisition and the incremental ARR from expansion and upsell. [1]
[1] Murray, B. Simple Sales Efficiency Metrics for SaaS Leaders - The SaaS CFO. Retrieved May 21, 2021, from https://www.thesaascfo.com/simple-sales-efficiency-metrics-saas/
[2] Retrieved May 21, 2021, from https://www.forentrepreneurs.com/saas-metrics-2-definitions-2/
[3] Kelley, L. Explaining Key SaaS Revenue Growth KPIs - OPEXEngine. Retrieved May 21, 2021, from https://www.opexengine.com/explaining-key-saas-revenue-growth-kpis/