diff --git a/templates/bluemoon/dashboard/blocks/default.tpl b/templates/bluemoon/dashboard/blocks/default.tpl
index 2c39f49b..52fa1c8f 100644
--- a/templates/bluemoon/dashboard/blocks/default.tpl
+++ b/templates/bluemoon/dashboard/blocks/default.tpl
@@ -34,7 +34,7 @@
               <td class="text-right">{$BLOCKSFOUND[block].estshares|number_format}</td>
               <td class="text-right">{$BLOCKSFOUND[block].shares|number_format}</td>
               <td class="text-right">
-                {math assign="percentage" equation="shares / estshares * 100" shares=$BLOCKSFOUND[block].shares|default:"0" estshares=$BLOCKSFOUND[block].estshares}
+                {if estshares > 0 }{math assign="percentage" equation="shares / estshares * 100" shares=$BLOCKSFOUND[block].shares|default:"0" estshares=$BLOCKSFOUND[block].estshares}{else}{assign var=percentage value="0"}{/if}
                 <font color="{if ($percentage <= 100)}green{else}red{/if}">{$percentage|number_format:"2"}</font>
               </td>
             </tr>
@@ -51,4 +51,4 @@
     </div>
     {/if}
   </div>
-{/if}
\ No newline at end of file
+{/if}
diff --git a/templates/bootstrap/dashboard/blocks/default.tpl b/templates/bootstrap/dashboard/blocks/default.tpl
index d947f537..efa4f077 100644
--- a/templates/bootstrap/dashboard/blocks/default.tpl
+++ b/templates/bootstrap/dashboard/blocks/default.tpl
@@ -29,7 +29,7 @@
               <td class="text-right">{$BLOCKSFOUND[block].estshares|number_format}</td>
               <td class="text-right">{$BLOCKSFOUND[block].shares|number_format}</td>
               <td class="text-right">
-                {math assign="percentage" equation="shares / estshares * 100" shares=$BLOCKSFOUND[block].shares|default:"0" estshares=$BLOCKSFOUND[block].estshares}
+		{if estshares > 0 }{math assign="percentage" equation="shares / estshares * 100" shares=$BLOCKSFOUND[block].shares|default:"0" estshares=$BLOCKSFOUND[block].estshares}{else}{assign var=percentage value="0"}{/if}
                 <font color="{if ($percentage <= 100)}green{else}red{/if}">{$percentage|number_format:"2"}</font>
               </td>
             </tr>
@@ -46,4 +46,4 @@
       {/if}
     </div>
   </div>
-{/if}
\ No newline at end of file
+{/if}