Sum Harvest App Quantity Column

gistfile1.txt

var inputs = [].slice.call(document.querySelectorAll('.quantity'));
inputs = inputs.filter(function (x) { return x.children[0] && x.children[0].classList.contains('js-change-total') });
inputs.reduce(function (x,y) { return x + parseFloat(y.children[0].value) }, 0);