No longer working with WooCommerce 2.6.11

I’ve just updated my site to WP 4.7 running the latest WooCommerce 2.6.11 and the styling for the “SAVE ￡x.xx!” badge is no longer working. If I deactivate the Smart Sale Badge plugin it returns to the correctly formatted “SALE!” badge and I can see some significant differences in the styling code. It looks like a WooCommerce update has broken your Smart Sale Badge plugin. Are you able to take a look/help? Thank you.