“Cuts closing time by 23 minutes” beats “saves you time” and even “cuts closing time by half an hour”. Precision signals that somebody actually measured — and audiences can feel the difference even if they never articulate it.
Round numbers read like marketing claims; precise ones read like measurements. Credibility is the cheapest conversion lift available — it costs an edit.
Audit your current claims. Everywhere you rounded ("save 30%", "thousands of merchants"), check whether the real number is available and use it ("save 27%", "4,218 merchants").