HowToChangeCurrencySymbolPosition

CurrencySymbolChangePositionObserver.php

<?php
namespace MageVision\Blog30\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Event\Observer;
use Magento\Framework\Currency;

class CurrencySymbolChangePositionObserver implements ObserverInterface
{
    /**
     * currency_symbol_change_position
     *
     * @param Observer $observer
     * @return CurrencySymbolChangePositionObserver
     */
    public function execute(Observer $observer)
    {
        $currencyOptions = $observer->getEvent()->getCurrencyOptions();
        $currencyOptions->setData('position', Currency::RIGHT);
        return $this;
    }
}

events.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="currency_display_options_forming">
        <observer name="currency_symbol_change_position" instance="MageVision\Blog30\Observer\CurrencySymbolChangePositionObserver" />
    </event>
</config>