Variable price issue

Hello, I have a serious problem with the sum of the variable prices.

the price I want to show on the home is 95 USD
https://prnt.sc/kpmdz4

And I have two variations: Estándar in 95 and Privada in 120
http://prntscr.com/kpmeej

The problem arises when choosing the variation. By default the tour price is shown, but when choosing the variation, the system adds the tour price (95 USD) plus the value of the Standard (95 = 190) or private (120 = 215 USD) variation.
http://prntscr.com/kpmf49
http://prntscr.com/kpmf6r
http://prntscr.com/kpmf9a

As an additional, this value should change depending on the variation chosen. Standard 95 or Private 120. But it is kept in 95. In this case I think you should change the class that has the element for the class .total_price
https://prnt.sc/kpmfuf

A “solution” is to set the tour price to 0, since the system does not allow this field to be empty. But in the home it is shown as $ 0. I think I should say something like “From $ 95 USD”
http://prntscr.com/kpmgd4
http://prntscr.com/kpmgh0
http://prntscr.com/kpmgka
http://prntscr.com/kpmgp0

And the last doubt. How do I put the currency after the price? It is currently shown as $ 95, but I would like it to be shown as $ 95 USD or 95 COP or 95 EUR. Thanks

Please, help me solve this problem. My client is upset with me because he thinks I have not advanced anything.