What is the correct method to change a decimal to a percentage?

What is the correct method to change a decimal to a percentage?

• A. Move the decimal point one place to the right
• B. Move the decimal point two places to the left
• C. Move the decimal point two places to the right and add a percent sign
• D. Leave the decimal as is

Answer: (C)

To convert a decimal to a percentage, the correct method involves moving the decimal point two places to the right and then adding a percent sign. This action essentially multiplies the decimal by 100, as percentage means "per hundred." For instance, if you have a decimal like 0.45, moving the decimal point two places to the right transforms it into 45, and by adding a percent sign, it becomes 45%. This reflects the relationship of the decimal value in a format that indicates how many parts out of a hundred it represents. In contrast, moving the decimal point one place to the right would only convert a decimal to a larger number without reaching the percentage form. Similarly, moving the decimal point two places to the left or leaving the decimal unchanged does not yield the correct percentage representation either. Thus, the method highlighted ensures that the conversion is accurate and aligns with the definition of percentages.

To convert a decimal to a percentage, the correct method involves moving the decimal point two places to the right and then adding a percent sign. This action essentially multiplies the decimal by 100, as percentage means "per hundred."

For instance, if you have a decimal like 0.45, moving the decimal point two places to the right transforms it into 45, and by adding a percent sign, it becomes 45%. This reflects the relationship of the decimal value in a format that indicates how many parts out of a hundred it represents.

In contrast, moving the decimal point one place to the right would only convert a decimal to a larger number without reaching the percentage form. Similarly, moving the decimal point two places to the left or leaving the decimal unchanged does not yield the correct percentage representation either. Thus, the method highlighted ensures that the conversion is accurate and aligns with the definition of percentages.