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# Up to 100%
- URL: https://www.willduder.com/up-to-100/
- Published: 2026-03-13T00:10:00.000Z
- Updated: 2026-05-15T18:58:05.000Z
- Author: Will Duderstadt

Your contractor says he’ll remove “up to 100% of the mold.”

Your surgeon says she’ll remove “up to 100% of the tumor.”

Your pilot lands safely “up to 100% of the time.”

You’d hire someone else, right?

Cascade claims their detergent “removes up to 100% of food residue.” Sounds bold. It isn’t. “Up to 100%” legally permits zero. It permits half. It permits any amount less than all of it.

The most [confident-sounding claims are often mathematical nothing](https://www.willduder.com/a-third-is-less-than-a-quarter/). “Up to” are two words with zero accountability.

The fine print isn’t in small type anymore. It’s in the headline. What claim in your marketing would fall apart under the same scrutiny?

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*This article, “*[*Up to 100%*](https://www.willduder.com/up-to-100/)*“, was inspired by a post that originally appeared on* [*LinkedIn*](https://www.linkedin.com/posts/willduderstadt%5Fyour-contractor-says-hell-remove-up-to-activity-7438012916743741440-1WqG?ref=willduder.com)*.*