Deduct 1 from product quantity in cart using ajax

Hi,

I was able to use the following link with my ajax code to add 1 to the product quantity in my cart:

<?php echo home_url(); ?>/?post_type=product&add-to-cart=myproductID

But I’m not sure what link/function I should use to deduct (minus) 1 from the quantity of a specific product in my cart.

Any thoughts?

Thanks

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