system/Debug/Toolbar.php
protected function roundTo(float $number, int $increments = 5): float
	{
		$increments = 1 / $increments;

		return (ceil($number * $increments) / $increments);
	}
protected function roundTo(float $number, int $increments = 5): float
	{
		$increments = 1 / $increments;

		return (ceil($number * $increments) / $increments);
	}
Rounds a number to the nearest incremental value.

@param float   $number
@param integer $increments

@return float