It is 89 centavos - exactly as in the question.
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. Adding zeros after the decimal point is wrong because they imply a degree of accuracy (significant figures) for which there is no justification.
Nine and six hundred eighty-eight thousandths in decimal form is 9.688
980.681
0.981 in decimal word form is: nine hundred eighty-one thousandths.
89000
nine thousand, nine hundred and eighty-three
Nine and six hundred eighty-eight thousandths in decimal form is 9.688
0.89
7.89
Eighty-nine hundredths as a decimal is 0.89
980.681
0.981 in decimal word form is: nine hundred eighty-one thousandths.
0.389
Nine hundred eighty three thousandths
901.987
Three hundred eighty four and nine tenths.
It is 9.688
Expressed as a decimal, 9 688/1000 is equal to 9.688.