<script>
( function( $ ) {
    $( document ).ready( function() {
        if ( $( 'body' ).hasClass( 'single-product' ) ) {
            var price = $( '.et_pb_woopro_price_0 .price ins .woocommerce-Price-amount.amount' ).text(),
                currency = price.substr( price.length - 1 ),
                inter_price = price.slice( 0, -1 ).split( ',' );
            new_price = inter_price[0] + '<span class="wpc-decimal">' + currency + inter_price[ 1 ] + '</span>';
            $('.et_pb_woopro_price_0 .price ins .woocommerce-Price-amount.amount').html(new_price)
        }
    } );
} )( jQuery );
</script>