Modify the price range format on the variable product

customize_price_range_format.php

<?php
/**
 * Modify the price range format on the product page
 * @package LetsGodev\MuPlugins
 * @since 1.0
 */

add_filter( 'woocommerce_get_price_html', 'priceRangeFormat', 10, 2 );

/**
 * Modify the price range format on the product page
 * @param string $price
 * @param WC_Product $product
 * @return string
 */
function priceRangeFormat( string $price, WC_Product $product ): string {
	
	if ( ! $product->is_type( 'variable' ) ) {
		return $price;
	}
	
	$prices = $product->get_variation_prices( true );
	
	$minPrice = current( $prices['price'] );
	$maxPrice = end( $prices['price'] );
	
	// Return price if min is equal to max.
	if ( $minPrice === $maxPrice ) {
		return $price;
	}
	
	return sprintf(
		esc_html__( 'Starting at %s %s', 'letsgo' ),
		wc_price( $minPrice ),
		$product->get_price_suffix()
	);
}