| Metric | Before (4 weeks) | After (4 weeks) | Change |
|---|---|---|---|
| Ad CTR | 1.4% | 1.9% | +36% |
| Landing page conversion rate | 1.8% | 3.6% | +100% |
| CPA | $18.37 | $8.96 | -51% |
| ROAS | 2.1x | 4.0x | +90% |
| Mobile load time | 4.8s | 1.9s | -60% |
Gray: before ยท Green: after (per 100 landing visits)
This reconstructs an improvement process I actually ran. Figures have been replaced with sample data to protect the client.