CartRate::newFromCounters

public function newFromCounters(array $counters)
{
	$sum      = $counters['sale_cart_sum_add'] ?: 0;
	$quantity = $counters['sale_cart_add_day'] ?: 0;
	$traffic  = $counters['conversion_visit_day'] ?: 0;

	$rate = new static;
	$rate->sum      = $sum;
	$rate->quantity = $quantity;
	$rate->traffic  = $traffic;
	$rate->rate     = $traffic ? $quantity / $traffic : 0;

	return $rate;
}