Format number to always show 2 decimal places

Question

I would like to format my numbers to always display 2 decimal places, rounding where applicable.

Examples:

number     display
------     -------
1            


        

Answer 1

var quantity = 12;

var import1 = 12.55;

var total = quantity * import1;

var answer = parseFloat(total).toFixed(2);

document.write(answer);