Adding a Percentage of Discount to a Variable Sales Product

Question

I am trying to add a percentage percentage discount on a site using WooCommerce.

Ive applied this script for standard price and sale price:

// Add save percentage next to sale item prices.
add_filter( 'woocommerce_get_price_html', 'adventure_tours_sales_price', 10, 2 );
function adventure_tours_sales_price( $price, $product ){
  $percentage = round( ( ( $product->regular_price - $product->sale_price ) / $product->regular_price ) * 100 );
  return $price . sprintf( __(' Save %s', 'woocommerce' ), $percentage . '%' );
}

Working on a script.

In the interface I have a percentage of the price.

Now I want to apply the same script to the price of a product change.

Ive checked the product change option and tried something like this:

// Add save percentage next to sale item prices.
add_filter( 'woocommerce_get_price_html', 'adventure_tours_sales_price', 10, 2 );
function adventure_tours_sales_price( $price, $product ){
  if( $product->is_type( 'variable' ) ) {
    $percentage = round( ( ( $product->regular_price - $product->sale_price ) / $product->regular_price ) * 100 );
    return $price . sprintf( __(' Save %s', 'woocommerce' ), $percentage . '%' );
  }else{
    $percentage = round( ( ( $product->regular_price - $product->sale_price ) / $product->regular_price ) * 100 );
    return $price . sprintf( __(' Save %s', 'woocommerce' ), $percentage . '%' );
  }
}

But this does not work, the percentage does not apply to the price.

Not in the interface.

Answer 1

Update for versions of WooCommerce 3+ | Replacing obsolete hooks

• Replace 'woocommerce_variable_sale_price_html' with 'woocommerce_variable_get_price_html'
• 'woocommerce_sale_price_html' 'woocommerce_get_price_html'

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add_filter('woocommerce_variation_sale_price_html','adventure_tours_sales_price', 10, 2 );
add_filter('woocommerce_sale_price_html','adventure_tours_sales_price', 10, 2 );
function adventure_tours_sales_price( $price, $product ){

    // Variables initialisation
    $regular_price = $product->regular_price;
    $sale_price    = $product->sale_price;
    $save_text     = __('Save', 'woocommerce') . ' ';

    if(!empty($sale_price)) {
        // Percentage calculation
        $percentage = '<span class="save-percent"> ' .$save_text . round( ( ( $regular_price -  $sale_price ) / $regular_price ) * 100 ) . '%</span>';

        $price = '<del class="strike">' . woocommerce_price( $regular_price ) . '</del>
        <ins class="highlight">' . woocommerce_price( $sale_price )  . $percentage . '</ins>';
    } else {
        $price = '<ins class="highlight">'.woocommerce_price( $regular_price ).'</ins>';
    }
    return $price;
}

add_filter('woocommerce_variable_sale_price_html', 'adventure_tours_sales_min_max_prices', 20, 2);
function adventure_tours_sales_min_max_prices( $price, $product) {

    // Variables initialisation
    $variation_min_reg_price = $product->get_variation_regular_price('min', true);
    $variation_max_reg_price = $product->get_variation_regular_price('max', true);
    $variation_min_sale_price = $product->get_variation_sale_price('min', true);
    $variation_max_sale_price = $product->get_variation_sale_price('max', true);
    $percentage_min = '';
    $percentage_max = '';
    $save_text     = __('Save', 'woocommerce') . ' ';

    // Percentage calculations
    if($variation_min_reg_price != $variation_min_sale_price)
        $percentage_min = '<span class="save-percent-min"> (' .$save_text . round( ( ( $variation_min_reg_price -  $variation_min_sale_price ) / $variation_min_reg_price ) * 100 ) . '%)</span>';
    if($variation_max_reg_price != $variation_max_sale_price)
        $percentage_max = '<span class="save-percent-max"> (' .$save_text . round( ( ( $variation_max_reg_price -  $variation_max_sale_price ) / $variation_max_reg_price ) * 100 ) . '%)</span>';

    if (($variation_min_reg_price != $variation_min_sale_price) || ($variation_max_reg_price != $variation_max_sale_price)) {
        $price = '<del class="strike">' . woocommerce_price($variation_min_reg_price) . '-' . woocommerce_price($variation_max_reg_price) .  '</del>
        <ins class="highlight">' . woocommerce_price($variation_min_sale_price) . $percentage_min . ' - ' . woocommerce_price($variation_max_sale_price) . $percentage_max . '</ins>';
    }
    return $price;
}

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