Calibre book footer remaining pages in section

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<header style="justify-content: center;font-size:x-small"><div  class="even_page">_AUTHOR_</div><div class="odd_page"><i>_TITLE_</i></div></header>

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<footer style="justify-content: center;font-size:x-small"><div></div><script>document.currentScript.parentNode.querySelector("div").innerHTML =  ""+ _PAGENUM_ +" of " + _TOTAL_PAGES_ +" (" + parseInt(_PAGENUM_*100/_TOTAL_PAGES_) + "%) / " +_TOP_LEVEL_SECTION_PAGENUM_ + " of " + _TOP_LEVEL_SECTION_PAGES_ + " ("+ parseInt(_TOP_LEVEL_SECTION_PAGENUM_*100/_TOP_LEVEL_SECTION_PAGES_) +"%)"</script></footer>