What this tile shows
Read against AOV without Coupon. If discounted baskets are smaller, the discount is not buying you a bigger order.
Squizzie calls this one AOV with Coupon. It reads as a money figure in your shop currency.
Where the number comes from
WooCommerce Orders. Order data including revenue, counts, and averages.
What you need for it to appear
Nothing beyond Squizzie and the shop data it already reads.