Final answer:
To convert 3.1 to a percent, you move the decimal point two places to the right and add a percent sign. Therefore, 3.1 is equivalent to 310%.
Step-by-step explanation:
To convert a decimal to a percent, we move the decimal point two places to the right and add a percent sign (%).
In this case, 3.1 can be written as 310%.
Learn more about converting decimals to percents