Update operator_overview.html

print/templates/operator_overview.html

@@ -27,7 +27,7 @@
         <main>
           <figure class="inksimulation operator" style="height: 210mm;">
                 {{ svg_overview|safe }}
-                <figcaption>{{ _('Scale') }} <span>{{ svg_scale }}</span></figcaption>
+                <figcaption>{{ _('Scale') }} <span>{{ svg_scale }}</span>%</figcaption>
             </figure>
         </main>
         {% include 'footer.html' %}