woocommerce-ppage-jq.js

$(document).on("click",".tm-qty-minus", function () {
var p = $(this).parent().find('input').val();
var pp = $(this).parents().find('.price').html();
var price = pp.slice(1);
price = parseFloat(price)
$('span.woocommerce-Price-amount.amount').html('<span class="woocommerce-Price-currencySymbol">$</span>'+(p*price).toFixed(2));
console.log(p, pp, price);
});

$(document).on("click",".tm-qty-plus", function () {
var p = $(this).parent().find('input').val();
var pp = $(this).parents().find('.price').html();
var price = pp.slice(1);
price = parseFloat(price)
$('span.woocommerce-Price-amount.amount').html('<span class="woocommerce-Price-currencySymbol">$</span>'+(p*price).toFixed(2));
console.log(p, pp, price);
});