id="variancePanel">
                                <h:panelGroup rendered="#{empty pharmacyStockTakeController.snapshotBill}">
                                    <div class="alert alert-warning">No snapshot bill selected. Please go back to the list and choose a bill.</div>
                                </h:panelGroup>

                                <h:panelGroup rendered="#{not empty pharmacyStockTakeController.snapshotBill}">
                                    <p:panelGrid columns="2" styleClass="ui