Case studies / ROAS 117% to 747%
From 117% to 747% ROAS: how I cut ad spend by about 59% and kept conversions steady
Introduction
Quick answer: An account that looked busy was spending $1.1K a month for 38 conversions at a 117.29% ROAS. After analyzing historical data, refining intent-driven keywords, cleaning up low-performing traffic and optimizing bidding, the next period spent $455 for 36 conversions at a 747.48% ROAS. Spend fell about 59%, clicks about 52%, conversions only about 5%, and ROAS rose about 6.4x.
By Mizanur Rahman, digital marketer. Updated 31 October 2026. Client names are kept confidential and the figures are as reported in the ad platforms.
Case study at a glance
| Detail | Info |
|---|---|
| Business | Anonymous client (name confidential) |
| Channel | Paid search (keyword-based ads) |
| Before period | 1 to 31 December 2025 |
| After period | 6 to 31 January 2026 (26 days) |
| Focus | Quality of traffic over volume |
What was the problem?
Before optimization the account looked busy but inefficient. It generated a lot of traffic and decent conversions, but profitability was under pressure. Instead of scaling, I paused and went back to the basics.
What did I change?
- Analyzed the historical data and measured every key metric to see where spend was leaking and where intent was strongest.
- Refined targeting and intent-driven keywords.
- Cleaned up low-performing traffic.
- Optimized the bidding strategy.
- Aligned the ads with what users actually needed, and let data guide every decision.
What were the results?
| Metric | Before (Dec 1-31, 2025) | After (Jan 6-31, 2026) |
|---|---|---|
| Ad spend | $1.1K | $455 |
| Clicks | 2.05K | 973 |
| Conversions | 38 | 36 |
| ROAS | 117.29% | 747.48% |
The after period is 26 days and the before period is 31 days, so the real efficiency gain is slightly smaller than a straight comparison suggests, but the direction and size of the change are clear.
What can you learn from this case?
- You do not always need more traffic. You need the right traffic.
- Spend can fall sharply without losing conversions when waste is removed.
- Optimize first, then scale. Scaling a leaking account multiplies the leak.
Related guides
- How to do better keyword research for Google Ads
- How to reduce ad costs on Google Ads
- How to optimize your campaign
Frequently asked questions
Can you improve ROAS while reducing ad spend?
Yes, when the cut spend was waste. Here spend fell from $1.1K to $455 while conversions stayed near 36, which lifted ROAS from 117.29% to 747.48%.
Why did clicks fall but conversions stay level?
Removing low-intent queries and cleaning up traffic cuts clicks that never convert. The remaining clicks came from people with stronger buying intent.
Should I optimize first or scale first?
Optimize first. Fix targeting, keywords, bidding and tracking, then raise budget on what is proven to work.
About the author: Mizanur Rahman is a digital marketer based in Dhaka, Bangladesh, who runs Facebook, Google and TikTok ad campaigns and conversion tracking for e-commerce, SaaS and service businesses. See all projects or get in touch about your own campaigns.
Key points
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Conclusion
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© 2026 Mizanur Rahman. All rights reserved.