TIP #9: Unexpected costs at checkout is the biggest cause of abandoned carts. When possible make the tax and shipping costs very clear or include them in the products’ price.
Approx. $4.6 tn worth of merchandise is abandoned in online shopping carts each year. Interestingly, just "Checkout optimization" can help save about $260 bn of it. With further use of retargeting strategies, about $2.75 tn of lost e-commerce revenue can be recovered! #ecommerce