1. Enable the "Mini" or "Mini attached to a product browser" mode of your mini-cart: kb.ecwid.com/Minicart#Miniview
2. These mini-cart views show a cart total when a customer hovers over the "My cart" link. In order to always show a total, apply this custom CSS code:
div.ecwid-minicart-mini-rolloverContainer {
display: block;
}
In order to make this code work properly, make sure that the "Hide bag if empty" option is disabled. You can check it on the "System Settings ā General ā Cart" page.