The issue where the price is hundred times higher than it should be (e.g. $2.99 is displayed as $299) is usually caused by the currency converter in your theme or by a third party currency conversion app.
To fix this issue, you usually just have to set a fixed initial currency format for the bundles in Bundler App settings -> General settings -> Advanced.
For most stores, it works if you set it up as ${{amount}} or ${{amount_with_comma_separator}} where you of course change the currency to your shop's default currency.