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Discount Gauge is a lightweight and user-friendly plugin designed to display the amount or percentage of discounts on both simple and variable products that are on sale. It does not add any extra CSS or JavaScript loading on the front-end, ensuring no negative impact on speed. The plugin’s settings include basic style features, and for further customization of the discount display, you can use CSS for the ID #disgau_discount_total_price. For example:
<pre><code>#disgau_discount_total_price {
 border: 1px dashed #1e73be;
 border-radius: 25px;
 width: 30%;
 text-align: center;
}
</code></pre>
Configuration
Go to your WordPress admin dashboard. 
Navigate to WooCommerce > Discount Gauge tab 
Choose the desired option for displaying the amount or percentage saved. 
Save your settings.
<h3>Compatibility</h3>
This plugin has been tested on WordPress up to version 6.4.2 and Woocommerce up to vrsion 8.3.1.

Discount Gauge

Discount Gauge is a lightweight and user-friendly plugin designed to display the amount or percentage of discounts on both simple and variable product …

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This plugins enables you create links with a coupon code that will be applied automatically.
If your shop URL is <code>https://shop.example.com</code> then you can add a coupon code in a query parameter like this <code>https://shop.example.com?coupon=WELCOME10</code>.
You can add the coupon code to any URL pointing to a page within yor WooCommerce store. It can be a homepage, product, category, cart, checkout or any other page.
<ul>
<li><code>https:\\shop.example.com\product\invisible-watch?coupon=vip-x4tz8</code></li>
<li><code>https:\\shop.example.com\product-category\new-arrivals?coupon=HELLO-4M1GO</code></li>
<li><code>https:\\shop.example.com\product-category\new-arrivals?coupon=HELLO-4M1GO</code></li>
</ul>
Example use case
A perfect case for Woo Coupon URL is when you want to offer a discount to your newsletter subscribers. 
Normally, you’d append a coupon code to the email, and your customers would need to copy and paste the code. 
With Woo Coupon URL you can now send a link with the discount code that will be applied when your customers click on the link.

Woo Coupon URL

Attach a coupon code to your URL and apply it automatically to the cart.

Discount Gauge vs Woo Coupon URL