Display WooCommerce highest variable product price only

max-price.php

<?php

function con_show_max_variation_price_only( $price, $product ) { 

// Main Variation Price

$prices = array( $product->get_variation_price( 'max', true ), $product->get_variation_price( 'min', true ) );


$price = $prices[0] !== $prices[1] ? sprintf( __( '%1$s', 'woocommerce' ), wc_price( $prices[0] ) ) : wc_price( $prices[0] );
 

// Sale Variation Price

$prices = array( $product->get_variation_regular_price( 'max', true ), $product->get_variation_regular_price( 'min', true ) );

sort( $prices );


$saleprice = $prices[0] !== $prices[1] ? sprintf( __( '%1$s', 'woocommerce' ), wc_price( $prices[0] ) ) : wc_price( $prices[0] );


//Output

if ( $price !== $saleprice ) {
	$price = '<span style="display:none;">' . $saleprice . '</span> <ins>' . $price . '</ins>';	
	}

	return $price;

}

add_filter( 'woocommerce_variable_sale_price_html', 'con_show_max_variation_price_only', 10, 2 );

add_filter( 'woocommerce_variable_price_html', 'con_show_max_variation_price_only', 10, 2 );