Is there an exchange rate widget or plugin with a premium?

Question

WordPress

I searched for a long time, I can’t find a widget or a plugin for the exchange rate with an extra charge. No matter what and how, you can from the site with a link.
For example, the dollar exchange rate is 60 rubles, but you need to display the price on the site immediately with an extra charge, for example + 2%, that is, the rate is taken from the Central Bank 60 rubles + 2% = 61.2 rubles. In order to be displayed on the site, the dollar exchange rate is 61.2, although according to the Central Bank it is 60.

Answer 1

You can also write a small PHP plugin (or just a PHP script) that will regularly receive exchange rates from the Central Bank of the Russian Federation, add 2% and display it on the site.
https://www.cbr.ru/development/
https://www.cbr.ru/development/ (there are even examples)