Magento 2 : Listing component amount formatting

Copy/**
     * Prepare Data Source
     *
     * @param array $dataSource
     * @return array
     */
    public function prepareDataSource(array $dataSource)
    {
        if (isset($dataSource['data']['items'])) {
            foreach ($dataSource['data']['items'] as & $item) {
                $currencyCode = null;
                if (!$currencyCode) {
                    $store = $this->storeManager->getStore(
                        $this->context->getFilterParam('store_id', \Magento\Store\Model\Store::DEFAULT_STORE_ID)
                    );
                    $currencyCode = $store->getBaseCurrency()->getCurrencyCode();
                }
                $basePurchaseCurrency = $this->currency->load($currencyCode);
                $item[$this->getData('name')] = $basePurchaseCurrency
                    ->format($item[$this->getData('name')], [], false);
            }
        }

        return $dataSource;
    }