← The sales analytics libraryPractice · 17 questions → Meet your AI CFO →
Leadership
Go-to-market efficiency
How much new ARR a dollar of sales and marketing spend produces — the magic number and its cousins. Whether growth spend earns its keep.
Owned by: VP Sales Ops / CROTest band: VP Sales Ops / CRO
The formula
Magic number = (ΔQuarterly revenue × 4) ÷ Prior quarter S&M spend
In practice
Above 0.75 says spend more; below 0.5 says fix the motion first. Watch the trend more than the level.
The kind of thing the test asks
- The magic number is 0.4 and has fallen for three quarters. The right move is…
More in leadership
Run a business, not a sales team? Wauvel reads your revenue by customer and month, straight from your QuickBooks.
$99/mo, everything included. Free for 14 days, no card.