Well, @josephxbrick has your back here as well! Take a look at this thread and the file he attached for currency formatting:
The short answer is that you can use this formula to add a dollar sign and format a number with commas, using the built-in (javascript) function ToLocaleString() :
$[[MyNum.toLocaleString()]]
If you need to support decimals, as in the value $1,234.56 then the formula becomes more complex, as explained in the thread above. I’ve applied this to your example. See this updated file:
notched slider 2.rp (518.7 KB)
EDIT: I posted this reply before I saw that @eladl had posted a second time here. I’ll try to look at this second example, but it looks like you just need to adjust the “Move” actions so the color-fill bar size is calculated to the center of the drag handle (e.g., “(dragHandle.left + dragHandle.width/2)” and double-check the boundaries set for dragHandle’s OnDrag action. Also, make sure the outer dynamic panel is set to “Fit to Content”.