calcItem = store.getAt(0),
added = this.getAdded(store),
removed = this.getRemoved(store),
previous = this.getRemaining(store),
existing = Ext.apply({}, previous, added);
calcItem = store.getAt(0),
added = this.getAdded(store),
removed = this.getRemoved(store),
previous = this.getRemaining(store),
existing = Ext.apply({}, previous, added);