Final answer:
Percents allow for easy comparison of different quantities because they are always on the same scale, which is the base of 100, facilitating uniformity in interpretation and calculation.
Step-by-step explanation:
Percentages offer a consistent way to compare different quantities because they all use the same scale.
A percent is a ratio that represents a fraction of 100, with the percent symbol (%) denoting this ratio. For instance, 25% is equal to 25/100, and 100% represents a whole or 100/100.
This uniform scale allows easy comparison across different data sets or variables, whether it's in determining concentration, comparing sizes, quantities, or rates. Moreover, the use of percentages in graphs, like bar graphs, enables a visual comparison of different categories.