KamGraphica

  if (typeof Shopify === 'undefined') var Shopify = {};
  Shopify.cart = {{ cart | json }};
  Shopify.toAdd = 378589397;
  var surchargeInCart = false;
  var total = 2507; // total in cents.
  for (var i=0; i<Shopify.cart.items.length; i++) {
    if (Shopify.cart.items[i].id === Shopify.toAdd) {
      surchargeInCart = true;
      total -= Shopify.cart.items[i].line_price;

kyleaparker

{% assign total_saving = 0 %}
{% for item in cart.items %}
{% if item.variant.compare_at_price > item.variant.price %}
{% capture saving %}{{ item.variant.compare_at_price | minus: item.variant.price }}{% endcapture %}
{% assign total_saving = saving | plus: total_saving %}
{% endif %} 
...rest of cart code within for loop
{% endfor %}

Display saving:

kloon

// check for clear-cart get param to clear the cart, append ?clear-cart to any site url to trigger this
add_action( 'init', 'woocommerce_clear_cart_url' );
function woocommerce_clear_cart_url() {
	if ( isset( $_GET['clear-cart'] ) ) {
		global $woocommerce;
		$woocommerce->cart->empty_cart();
	}
}

Chrisedmo

<div class="grid-product {% cycle ' alpha', '', ' omega' %}" itemscope itemtype="http://schema.org/Product">
  {% if product.compare_at_price_min > 0 %}
  <!-- SALE BOX -->
  <div class="sale-box">
    <p>Sale</p>
  </div>
  {%endif%}

  <div class="product-photo">
    <a href="{{ product.url | within: collection }}" title="{{ product.title }}">

carolineschnapp

<!-- Solution brought to you by Caroline Schnapp -->
<!-- See this: https://docs.shopify.com/support/your-store/products/can-i-recommend-related-products#finding-a-relevant-collecitons -->

{% comment %}
  Number of related items per row,
  and number of rows.
{% endcomment %}

{% assign number_of_related_products_per_row = 4 %}
{% assign number_of_rows = 1 %}