updated product price

{% if product.compare_at_price > product.price %}
  <del>${{ product.compare_at_price | money_without_currency | ceil }}</del>
  <span class="sale-price"><span itemprop="price">${{ product.price | money_without_currency | ceil }}</span> ({{ product.compare_at_price | minus:product.price | times:100 | divided_by:product.compare_at_price }}% off)</span>
{% else %}
  <span itemprop="price">${{ product.price | money_without_currency | ceil }}</span>
{% endif %}