Hi @gregmerriman Welcome to the community! In order to pass the cost into the price field, you’ll need to setup logic jumps and calculations. This article here can provide more information on using this feature.

An example of this is below. In this example, they use the calculator to add the value to the ‘price’ variable, which then appears in the payment block. 

When you recall variables later in the form, there isn’t a way to prevent them from showing if the respondent doesn’t answer that field, as it will show a blank line like you’re currently seeing. Though, I can share this feedback with our product team.