You can click on the "Search" button above and enter "decimal point" and a range of 2000 days and you can find quite a number of threads discussing how to do that.
I reproduce part of one of the posts below:
You can display decimal point on LCD for a variable C as follow:
SETLCD 1,1, STR$(C/100) + "." + STR$(C MOD 100)+ "V"