Finance paper with different decimal places
This is an issue of significant figures. You say the value of 1.00 is not informative, but trailing zeros after a decimal point do, in fact, carry meaning. Showing a number that's been rounded to 1.00 indicates that the true value is somewhere between 0.995 and 1.004 - we know that the hundredths place rounds to 0. If you show the number as just 1, I can only infer that the true value is somewhere between 0.5 and 1.4. You're losing information, since we know that the tenths place is indeed zero, and that the hundredths place rounds to zero. Keeping the trailing zeros after the decimal point shows the level of precision with which you have measured your values.

You are free to round the numbers to whatever precision is meaningful for your domain, but keep in mind that your representation can reflect the precision of the underlying data - there is indeed a difference between a value of 1 and a value of 1.00.