View difference between Paste ID: 9cZdH5fA and WiXfFwWR

 function GetItem(itemID) {
   var myUrl = "http://www.gw2spidy.com/api/v0.9/json/item/" + escape(itemID);
   var jsonData = UrlFetchApp.fetch(myUrl);
   var jsonString = jsonData.getContentText();
   var jsonObject = JSON.parse(jsonString).result;
   return jsonObject;
 }
 
 function GetItemSellValue(jsonObject) {
       var adjustedValue = (jsonObject.min_sale_unit_price / 100);
       return adjustedValue;
 }
 
 function SalePriceChangedLastHour(jsonObject) {
       var adjustedValue = (jsonObject.sale_price_change_last_hour / 100);
       return adjustedValue;
 }
 
 function GetItemBuyValue(jsonObject) {
       var adjustedValue = (jsonObject.max_offer_unit_price / 100);
       return adjustedValue;
 }
 
 function OfferPriceChangedLastHour(jsonObject) {
       var adjustedValue = (jsonObject.offer_price_change_last_hour / 100);
       return adjustedValue;
 }
 
 // functions call example for prices of Glob of Ectoplasm:
 
 //get all information about that item (a single HTTP request is made) and save them in a variable
 var ecto = GetItem(19721);
 
 //get adjusted values passing already downloaded object info to adjusting functions
 var sell=GetItemSellValue(ecto);
 var sall_changed=SalePriceChangedLastHour(ecto);
 var buy=GetItemBuyValue(ecto);
 var buy_changed=OfferPriceChangedLastHour(ecto);