product.liquid from the Snippets folder (important)

product.liquid

          <h5 class="product__price uppercase h5{% if current_variant.compare_at_price > current_variant.price %} on-sale{% endif %}">
            <span class="money"><span id="ProductPrice-{{ section.id }}">{{ current_variant.price | money }}</span></span>

            <p class="small compare-at em" id="ComparePriceWrapper-{{ section.id }}" {% unless current_variant.compare_at_price > current_variant.price %}style="display: none"{% endunless %}>
            <span class="money"><span id="ComparePrice-{{ section.id }}">{{ product.compare_at_price_max | money }}</span></span>
            </p>
          </h5>