add_action('woocommerce_before_add_to_cart_form', 'selected_variation_price_replace_variable_price_range');

function selected_variation_price_replace_variable_price_range(){

    global $product;

​

    if( $product->is_type('variable') ):

    ?><style> .woocommerce-variation-price {display:none;} </style>

    <script>

    jQuery(function($) {

        var p = 'p.price';

​

        $('form.cart').on('show_variation', function( event, data ) {

            $(p).html(data.price_html);

        }).on('hide_variation', function( event ) {

            $(p).html($(a).html());

        });

    });

    </script>

    <?php

    endif;

}

​