Customize variable woocommerce products price range label

woo.php

/*
 * Personalizar apresentacao do price range de produto
 * para produtos variaveis
 */
add_filter('woocommerce_variable_price_html', 'custom_variation_price', 10, 2);
function custom_variation_price( $price, $product ) {
	$price = '';
	if ( !$product->min_variation_price || $product->min_variation_price !== $product->max_variation_price ) $price .= '<span class="from">' . _x('From', 'min_price', 'woocommerce') . ' </span>';
	$price .= woocommerce_price($product->min_variation_price);
	return $price;
}