some times there are problems with displaying decimal numbers in PHP.
One I encountered was when I was displaying a number to 2 decimal places after multiplying by 10.
This causes it to become a float again and does not do what it should with number_format and sprint printf and round!
nothing will work except this….
$tenmonths = 29.877643;
// below does not work
<?php echo round($tenmonths*10, 2) ?>
//above does not work
<?php echo bcmul($tenmonths, 10, 2) ?>