30/68 as a percentage is 44.12%. This is the rounded value you get when you express the fraction in terms of a whole number out of 100.
The fraction 30/68 can be reduced to 15/34, which still represents the same part of a whole. Even in its simpler form, it shows that a little less than half of something is being taken.
In everyday life, you might see this percentage when looking at test scores, discounts, or statistics. Knowing that 44.12% is just under half helps you quickly gauge whether something is more or less than an even split.
Because the value is rounded to two decimal places, the exact decimal might be a tiny bit different, but 44.12% is accurate enough for most practical purposes.