Pitching Numbers to Investors
向投资人讲好你的数字
一场创始人与风险投资人的融资问答：投资人真正想听的不是浮夸的大数字，而是你对单位经济、获客成本、留存与增长逻辑的清醒把握。学会用 unit economics、CAC、LTV、burn rate、runway 这些术语从容作答，坦诚面对薄弱指标并给出改进路径——诚实且有掌控感的数字叙事，才是打动投资人的关键。
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Scene: Nadia, founder of a two-year-old software startup, is raising a Series A. Across the table sits Reza, a partner at a venture fund who has heard a thousand pitches and can smell an inflated number instantly.
Reza: Your deck says revenue tripled last year. Impressive on the surface. But triple from what base, and at what cost? Walk me through your unit economics before we talk about the growth curve.
Nadia: Happy to. We grew from 400K to 1.2 million in annual recurring revenue. On unit economics, it costs us about 1,200 dollars to acquire a customer, and the average customer pays us 6,000 dollars over their lifetime. So our LTV to CAC ratio is five to one, which is healthy — the standard benchmark is three to one.
Reza: A five-to-one ratio is genuinely strong, if it holds at scale. My worry is that acquisition costs usually rise as you exhaust the easy customers. Is your CAC trending up or down over the last four quarters?
Nadia: I won't pretend it's flat — it rose about 15% as we moved beyond our earliest adopters. But two things offset that. Our net revenue retention is 118%, meaning existing customers spend more each year, so we grow even before adding anyone new. And referrals now drive a third of sign-ups at near-zero cost, which pulls the blended CAC back down.
Reza: Now that's the answer of someone who actually reads their own dashboard. Net revenue retention above 110% is exactly what I look for. Let's talk survival. What's your monthly burn rate, and how much runway does this round buy you?
Nadia: We burn 150K a month right now. We're raising 6 million, which gives us about 30 months of runway even with no revenue growth — and realistically, closer to four years, since revenue keeps covering more of the burn each quarter. I'd rather show you the conservative number and beat it than promise a fairy tale.
Reza: That last line is why I'm still in the room. Founders who inflate every metric lose me by slide three; founders who show me the weak number and how they're fixing it earn a second meeting. Send me the cohort data and your churn by segment. If it holds up, let's talk terms.