Add additional costs

Hi Guys,

I’m using your awesome plugin.

I know I can use variations for add additional cost for a item when user going to proceed.

But now I want this.
Example :-

Buyer will add so many products to his cart and going to proceed. Now I want to check that cart total and if total less than USD 50, I want to add additional USD 10 cost for his total. Also need to show a notice label for that buyer. Else(Greater than USD 50)that proceed checkout normally as it was.

I liked to know can I do using this awesome plugin. I need quick answer from you guys.

Thanks in advanced.

https://www.ads-software.com/plugins/woocommerce/