A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. So the required decimal representation is 412, exactly as in the question.
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To convert any decimal to percent, simply multiply the decimal by 100. So, 4.12 × 100 = 412%
Percent is hundredths. So 4.12= 412%
since the first number after the decimal is less than 5, round to 412
412 percent in fraction = 412/100 or 103/25 412% = 412%/100% = 412/100 or 103/25 in fraction
121% of 412 = 498.52= 121% * 412= 1.21 * 412= 498.52