Expression allows you to separate long numbers any characters such as spaces or dots. Example: the number of 1000000000, using this expression will be displayed so – 1.000.000.000. Used for Source Text of the text layer linked with the Slider Control effect.

function Comma(number)
{
number = '' + Math.round(number);
if (number.length > dig)
{
var mod = number.length % dig;
var output = (mod > 0 ? (number.substring(0,mod)) : '');
for (i=0 ; i < Math.floor(number.length / dig); i++)
{
if ((mod == 0) && (i == 0))
output += number.substring(mod+ dig * i, mod + dig * i + dig);
else
output+= sym + number.substring(mod + dig * i, mod + dig * i + dig);
}
return (output);
}
else return number;
}

var num = effect("Slider Control")("Slider"); // Slider Control
sym = '.'; // A symbol that will separate numbers. You can put a space
wordL = "$"; // The word before the number
wordR = " "; // The word after the number
dig = 3; // The number of digits followed by a separator
num =wordL+ Comma(num) + wordR;

[num]