Step-by-step guide AI Job-Search Fast-Track: experienced professionals (3–15 years) →
You almost certainly have numbers. They're just not the kind most CV, or resume, advice has in mind. If your job has no sales target or budget line, count what you handled: how much, how often, for how many people, how fast, and what the figure was before you changed something. Where nothing can be counted, use proof that can be checked instead: the system you used, who relied on your work, a decision that is still in place, or someone else's words. Never invent a figure. Estimate honestly, say that it's an estimate, and keep everything in one private list, which we call an evidence bank. Here's how, with examples from a CV we tested.
What "quantify" was always meant to mean
The best-known version of this advice comes from Laszlo Bock, Google's former head of HR. In a LinkedIn article of 29 September 2014, he gave a formula for every line on a resume: "Accomplished [X] as measured by [Y] by doing [Z]". He then spelled it out: start with an active verb, measure what you accomplished, give a baseline for comparison, and say what you did to get there.
Two details in his article are easy to miss. The first is the baseline. A number means little until the reader knows what it was before, or what is normal. The second is that the measure doesn't have to be money. One of his own examples is a student selected as one of 230 participants nationwide for a development programme. That is a number about being chosen, and it works.
University careers offices say the same in fewer words. Harvard's guide to a strong resume asks for language that is specific and fact-based, by quantifying and qualifying. MIT's careers office says to quantify if you can, and gives a plain example: if you gave a presentation, say how many people attended. The UK's National Careers Service suggests describing each job in two to three lines with the STAR method: the situation, the task, the action you took and the result.
So the standard was never "have a revenue figure". It is "state a fact a stranger could check". That's a test almost every job can pass.
Why it matters more in 2026
Polished wording used to be a signal of effort. It isn't any more. In a survey of more than 2,000 US hiring managers run in November 2025, 65% said a surge in applications, many of them enhanced or generated by AI, had made candidates' skills harder to verify (Robert Half, 10 March 2026). A study of a large freelance platform found that employers paid more for applications tailored to their job before AI writing tools arrived, and that the premium disappeared afterwards (Galdin and Silbert, November 2025).
Clear writing still helps. In a field experiment with nearly half a million job seekers, those given help with their resume writing were hired 8% more often (Wiles, Munyikwa and Horton, published in Management Science in 2025). An assistant can make you clear. It can't make you specific, because the specifics live in your memory and your old files. They are also what screening tools compare with the job's requirements, as we explain in what the screening vendors document.
Seven places numbers hide
Take one role and ask yourself each question below. The examples marked Robin come from the fictional CV we used to test our guide: a customer-operations lead whose CV had fifteen bullets of duties and not one number. Square brackets are for you to fill.
| Kind of number | Ask yourself | What it looks like |
|---|---|---|
| Volume | How many did I handle in a normal week? | Answered about [n] customer emails a day |
| Frequency | How often did I do it, and for how long? | Ran the weekly staffing forecast for [n] months |
| Scale | How many people, sites, markets or customers did it cover? | Robin: 24 agents and 3 team leads, plus a 9-agent outsourced team |
| Time | How long did it take, and how long used it to take? | Robin: trained 8 temporary agents in 3 weeks |
| Before and after | What was the figure when I started? | Robin: cut email first response time from 19 to 4 hours in 9 months |
| Rate or share | Out of every hundred, how many? | Robin: 18% of chats resolved without an agent |
| Rank or selection | Was I chosen from a group, or the first to do it? | Bock's example: selected as one of 230 participants nationwide |
Robin's three roles produced 16 pieces of evidence this way. None of them needed a finance system. They needed a calendar, a sent-mail folder, an old report or a former colleague's memory.
When there really is no number
Some good work can't be counted, and forcing a figure onto it reads worse than leaving it out. This is where the "qualify" half of Harvard's advice comes in. Four kinds of proof work without a number.
- The named system or method. Robin's draft said "workforce management". The truth was a forecast in Google Sheets, with no workforce-management software involved. "Forecasting and hourly staffing in Google Sheets" is smaller, exact and far easier to defend.
- Who relied on it. "Built a 12-week rolling contact forecast used for hourly staffing" has no result figure. It still tells the reader what existed afterwards and that it was used.
- A decision that stuck. If the process, template or rule you introduced is still in use, say so. Lasting is a result.
- Someone else's words. A line from an appraisal, an audit finding, a client's email or an award. Use it only if you could show it when asked.
Count the absences too. No late filings in two years and no escalations after the change are both numbers. The number is zero.
How to estimate without making things up
You won't have an exact figure for everything, and you don't need one. You need an estimate you can rebuild.
- Start from a record. Calendar entries, ticket or order exports, sent mail, old slide decks, appraisal forms. Memory is a last resort.
- Do the sum in the open. A count per week multiplied by the weeks you did it is a method. "It felt like a lot" is not.
- Round down and mark it. Write "about" or "approx.", or give a range.
- Write down where it came from. One line in your notes is enough. It's the answer to the interviewer's follow-up question.
- If you can't rebuild it, leave it out. Describe the result in words instead.
Confidential figures: if a number isn't public, such as revenue, margins or customer counts, use a percentage, a ratio or a range. "Cut refunds by 23%" proves the same skill as the underlying amount and gives nothing away.
Keep AI away from the numbers
ChatGPT and Claude are good at the part people find hard: asking the questions that turn a duty into a result. They must not supply the answers. When we had ChatGPT interview Robin, with an instruction never to invent facts or numbers, it invented none. When Robin didn't know two figures, it said so and suggested finding them out later.
What it did do was make the wording bigger in four places. The clearest example was "managing a 33-person operation". Robin had 24 agents of their own. The other 9 worked for an outsourcing partner and were run by the partner's team lead. The arithmetic was right and the claim was still wrong. A number attached to the wrong verb is as risky as an invented one, which is why inflated claims, not AI detection, are the real risk of writing a CV with an assistant.
One evidence bank, built once
An evidence bank is a private document with one entry per achievement, in four parts: the situation, what you did, the result with its number, and how you could prove it. Fifteen to twenty-five entries cover most careers. Add one line at the bottom headed "Don't claim", listing what job ads often ask for and you haven't done: a sector, a tool, a qualification. In our test, that single line turned three possible stretches into honest gaps later on.
Robin's bank came to 16 entries from three roles. Answering the questions took most of an hour. Here is what it did to the CV:
| Before | After | Kind of proof |
|---|---|---|
| Improved response times and customer satisfaction | Cut email first response time from 19 to 4 hours in 9 months with triage rules by contact reason and hourly staffing based on 12 weeks of contact data | Before and after, time, method |
| No bullet at all | Cut agent attrition from 41% to 22% (2022 to 2024) by introducing a 3-level career ladder and fixing the weekend rota | Before and after, rate |
| Involved in an AI chatbot project | Ran a 3-month pilot of an AI answer bot: 18% of chats resolved without an agent, with satisfaction level with human-handled chats | Share, time, a comparison |
Bullets with a number went from 0 of 15 to 14 of 15. Look at the middle row. Robin's old CV had no line about attrition or about refunds, so the first rewrite of the bullets skipped both. They were Robin's two best results, and they only came back when we asked which entries in the bank no bullet covered. Your best results may be the ones your current CV never mentions.
The bank format, the prompt that runs the interview, the one-column master CV and the tailoring routine that draws on all of it are in The AI Job-Search Fast-Track, experienced professionals edition. If you'd rather start from a free article, how to tailor your CV with ChatGPT or Claude, honestly walks through the routine.
Either way, the order matters: evidence first, wording second. A CV built on facts you can explain needs no tricks, and it holds up when the interviewer asks how you measured that.
Frequently asked questions
How do I quantify achievements on a CV if my job has no targets? Count what you handled instead of what you sold. Volume, frequency, the size of the team or area you covered, how long things took, and the figure before and after your change are all honest numbers. Where nothing can be counted, name the system or method, say who relied on the work and whether it is still in use.
Is it OK to estimate numbers on a CV? Yes, if you can rebuild the estimate from a record such as your calendar, sent mail or old reports, round it down, and mark it with about or approx. You should be able to explain in one sentence where it comes from. If you cannot, leave the number out and describe the result in words.
What if my numbers are confidential? Use a percentage, a ratio or a range instead of the absolute figure. A line such as cut refunds by 23% proves the same skill as the underlying amount without giving away anything your employer has not published.
Can ChatGPT or Claude find the numbers for me? No. An assistant can ask good questions and help you turn an answer into a clear line, but the facts have to come from you. In our test on a fictional CV, with an instruction never to invent, the assistant made up no numbers, yet it still made some wording bigger than the truth. Read every line before it goes on your CV.