Convert 78% to a decimal.

To convert a percentage to a decimal, you divide the percentage by 100. Therefore, to convert 78% to a decimal, you take 78 and perform the calculation ( 78 \div 100 ). This results in 0.78.

When performing this conversion, it's important to remember that the percentage sign indicates "per hundred," so moving the decimal point two places to the left effectively transforms the percentage into a decimal format. In this case, the correct conversion shows the value as 0.78, aligning perfectly with the identification as a decimal representation of 78%.

The other options reflect either miscalculations or misinterpretations of the conversion process, which further highlights why 0.78 is indeed the correct transformation of 78%.