Forty percent is the same as 0.40 in decimal form. It is possible to convert a percentage to a decimal by moving the decimal point two places to the left.
Another way to determine the decimal form of a percentage is to divide the percentage by 100. Forty divided by 100 is 0.40, which is the decimal form of 40 percent. Decimals and percentages are both based on the number 100, making it easy to convert from one to the other.
To convert a decimal to its corresponding percentage, multiply by 100 or move the decimal point two places to the right. Using 0.40 as an example, moving the decimal point two places to the right gives a result of 40 percent.