The answer depends on the units used for the given quantity. It should be plainly obvious to anybody that the answer for 5.76 dollars will be very different from that for 5.76 Euros. So, without any information about the units for the given quantity, it is not possible to give a sensible answer.
576.0
1.239 rounded to the nearest cent is 1 cent.
2.49 is already rounded to the nearest cent.
2.66 is rounded to the nearest cent.
46.0052 rounded to the nearest cent is 46.01
576.0
1.239 rounded to the nearest cent is 1 cent.
298.987 cents, rounded to the nearest cent is 299.298.987 cents, rounded to the nearest cent is 299.298.987 cents, rounded to the nearest cent is 299.298.987 cents, rounded to the nearest cent is 299.
2.49 is already rounded to the nearest cent.
2.66 is rounded to the nearest cent.
.0306 rounded to the nearest cent is .03.
7.69647696 rounded to the nearest cent is 7.70
46.0052 rounded to the nearest cent is 46.01
76.23 rounded to the nearest cent is 76.23
132.1353 rounded to the nearest cent is 132.14
$2,380.679 rounded to the nearest cent is $2,380.68.
4.85 is already rounded to the nearest cent.