Have you ever really given any thought to what 30 percent cleaner really means? Do you weigh the scrapings of carbon or what? Must be in grams. If it is in grams, we are talking small , small data.
Marketing will get you every-time--you see when they, whoever they is or are, uses 30 percent cleaner, your mind sees this huge number like in ounces or pounds and walla, we buy into it,,,imho. It is a great marketing tool, been working for a 100 years or more.....