The cost of a lost proposal is the time you put into a deal that didn't close, turned into dollars. Add the hours you spent writing it to the hours you spent following up, multiply by your hourly rate, then by the number of proposals you lose each month. Few service businesses run this number, and it's usually bigger than it feels.
Why does nobody run this number?
You take the discovery call, write the proposal, send it. It doesn't close. You move on to the next lead.
The cost never shows up in QuickBooks. There's no invoice and no expense line. It hides in the billable hours you spent on work nobody paid for.
What's the formula?
Cost per proposal = (hours writing + hours following up) × your hourly rate + opportunity cost
Opportunity cost is the paid work you didn't do while you were writing. It's hard to pin down, so the example below leaves it out. Your real number is higher.
How do you calculate it step by step?
- Your hourly rate. Your target monthly revenue divided by the hours you actually bill. In the example: $100.
- Hours per proposal. Discovery call, writing and review. In the example: 2.5 hours.
- Follow-up hours. Emails, calls and revisions after you hit send. In the example: three 15-minute follow-ups, 0.75 hours.
- Cost per proposal. (2.5 + 0.75) × $100 = $325 per proposal.
- Lost proposals per month. Proposals sent × (1 − close rate). In the example: 10 proposals at a 30% close rate = 7 lost.
- Monthly and yearly cost. 7 × $325 = $2,275 a month, $27,300 a year.
Swap in your own numbers. If you don't know your close rate, start there: accepted proposals divided by proposals sent over the last three months.
In Nepfy, the math is already done: every proposal lands on your dashboard with a stage (Draft, Sent, Being read, Negotiating, Won or Expired). Win rate comes from those counts, with the average time to close next to it, so you don't have to build a spreadsheet to know your number. See the sales dashboard.
What is a higher close rate worth?
Keep the same example and add an average deal size of $3,000. Here's 30% versus 40% on the same 10 proposals a month:
- 30%: 3 deals, 7 lost proposals, $2,275 in lost hours a month.
- 40%: 4 deals, 6 lost proposals, $1,950 in lost hours a month.
The extra deal brings in $3,000 a month, $36,000 a year, and the lost hours drop by $3,900 over the year. All of it comes from the pipeline you already have.
Why is close rate the most overlooked number?
A low close rate can come from very different places: leads with no budget or urgency, a proposal that doesn't make the case, a passive follow-up, or a format that buries the important parts. Each cause has a different fix, and you only find out which one you have once you start measuring.
If the problem is in the proposal itself, start with the proposal mistakes that cost the most deals. If it's in the meeting, see how to present a proposal instead of just emailing it.
Where should you start?
This is the cheapest cost in your business to cut. You don't need more traffic or a bigger budget. You need to close a bigger share of what already reaches you, and stop spending hours on proposals that never had a chance.
Frequently asked questions
What goes into the cost of a lost proposal?
The hours spent on the discovery call, writing, review and follow-up, multiplied by your hourly rate. Opportunity cost sits on top, even if you can't put an exact number on it.
How do I figure out my hourly rate?
Divide the monthly revenue you're aiming for by the hours you actually bill in a month, not the hours you work.
Should I focus on more leads or a higher close rate?
It depends on where the bottleneck is, but closing more is usually the cheaper lever: the lead already showed up and the proposal is already written. Measure your close rate before you spend more on acquisition.
In Nepfy, your dashboard shows closed revenue, open pipeline and win rate with no spreadsheet, and each proposal shows how far the client read.
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