Increaser price 3 times for specific products Woocomerce

Hello i am trying to increase the prices of few products 3 times. using woocommerce hooks. but i am able to increase the price by below code i want to increase also subtotal and in final cart.


function return_custom_price($price, $product) {
if ( is_product() ){
    if( $post->ID == 8118 || $post->ID == 7824 || $post->ID == 8108 || $post->ID == 8116 || $post->ID == 8114  ) {
$product = wc_get_product( $post_id );
$post_id = $post->ID;
$price = ($price*3);
return $price-2;
}
else {
    $product = wc_get_product( $post_id );
$post_id = $post->ID;
return $price;
}
}}
add_filter('woocommerce_get_price', 'return_custom_price' ,0, 2);
add_filter('woocommerce_variation_prices_price', 'return_custom_price' ,0, 2);