To convert a decimal number to a percentage, you follow this simple process:
1. Understand the decimal form: A number in decimal form like 1.78 can be interpreted as the value it holds in base 10.
2. Multiply by 100: To convert the decimal number to a percentage, you multiply it by 100. This step is crucial because 'percentage' means 'per hundred'.
[tex]\[
1.78 \times 100 = 178
\][/tex]
3. Attach the percentage symbol: Finally, affix the percentage (%) symbol to the result of your multiplication.
[tex]\[
178\%
\][/tex]
Thus, 1.78 written as a percentage is:
178%.
