Payment Gateway Based Fees (by WooCommerce)
Plugin URL: https://woocommerce.com/products/payment-gateway-based-fees/
//In file \plugins\woocommerce-additional-fees-2\classes\class-wc-add-fees.php function calculate_fees add next code if (class_exists('WOOCS')) { global $WOOCS; if ($WOOCS->is_multiple_allowed) { $add_fee_fixed = $WOOCS->woocs_exchange_value(floatval($add_fee_fixed)); } } //AND add this code if (class_exists('WOOCS')) { global $WOOCS; if ($WOOCS->is_multiple_allowed) { $add_fee = $WOOCS->woocs_exchange_value(floatval($add_fee)); } } //AND in function &calculate_gateway_fee_total add next code if (class_exists('WOOCS')) { global $WOOCS; if ($WOOCS->is_multiple_allowed) { $maxval = $WOOCS->woocs_exchange_value(floatval($maxval)); } }