What are some facts for rate and principle?

im having trouble with changing fractions into percents

changing fraction to percent.

Step1. divide numerator by denominator. For example 3/5 = 0.60.
another example 2/5 = 0.40

Step 2. Move the decimal point to the right two places.
0.60 = 60%
0.40 = 40%.
In the future, go to the top of the board and post your question under post a New Question. If you piggy back on another question, as you have done here, often it gets overlooked.

In order to provide you with facts regarding rate and principle, I need a bit more clarification on what you mean by "rate and principle." Are you referring to a specific topic or concept, or are you looking for general information about rates and principles? Please provide more information so that I can assist you more effectively.