Depart Plugin – different deposit prices throughout checkout

The plugin shows the customer (on the front end) three different deposit prices. When they order a saddle (product category for which we want to use the plugin), at first they see a deposit price of 15% of the base price of the product (see screenshot “product page”). When they go to cart, they see another deposit amount, which is calculated including the upcharge options they selected (see screenshot “cart”). And when they move to checkout, the plugin also adds the shipping price to the amount, which means now it’s another different deposit price for the customer to pay (see sreenshot “checkout”).

Can this be solved / can we decide which price we want to use? Ideally the deposit should be calculated off the full product price (incl. options) without shipping.

Thank you for your help!