der="Iron (%)" property="iron" type="Number" align="right" format-value="[[toPercentage]]" sortable tooltip="The amount of iron as a percentage of the recommended daily amount."></paper-datatable-column>
					</paper-datatable>
				</paper-card>

		</template>

		<script>
			var app = document.querySelector('#app');
			app.data = [
				{id: 0, title: 'Frozen yogurt', calories: 159, fat: 6, carbs: 24, protein: 4, sodium: 87, calcium:.14, iron: .01},
				{id: 1, title: 'Ice cream sandwich', calories: 237, fat