<script src="https://code.jquery.com/jquery-3.0.0.min.js"></script>
<script type="text/javascript">
function callbb(postID){
$.ajax({
    type:'POST',
    url: 'http://localhost/w/wp-admin/admin.php?page=rssap-feeds&action=run&post=' + postID + '',
        success:function (){
                alert('You have made it - ' + postID + '')
            },
            progress: function(e) {

            alert('Your process is going one! ' + e.lengthComputable)
            }
});
}

(function($, window, undefined) {
//is onprogress supported by browser?
var hasOnProgress = ("onprogress" in $.ajaxSettings.xhr());

//If not supported, do nothing
if (!hasOnProgress) {
    return;
}

//patch ajax settings to call a progress callback
var oldXHR = $.ajaxSettings.xhr;
$.ajaxSettings.xhr = function() {
    var xhr = oldXHR();
    if(xhr instanceof window.XMLHttpRequest) {
        xhr.addEventListener('progress', this.progress, false);
    }

    if(xhr.upload) {
        xhr.upload.addEventListener('progress', this.progress, false);
    }

    return xhr;
};
})(jQuery, window);
</script>

 <a title="Run"  href="#" onclick="var postID = $(this).data('postId'); callbb(postID)" data-post-id="506">Run</a>