Fix division by zero error

@@ -125,8 +125,14 @@ def property(request, property_id):    uptime = property_obj.statuses.filter(status_code=200).count()    downtime = property_obj.statuses.exclude(status_code=200).count()    total = uptime + downtime    uptime_pct = round(uptime / total * 100, 2)    downtime_pct = round(downtime / total * 100, 2)    try:        uptime_pct = round(uptime / total * 100, 2)    except ZeroDivisionError:        uptime_pct = 0    try:        downtime_pct = round(downtime / total * 100, 2)    except ZeroDivisionError:        downtime_pct = 0    context["uptime_graph"] = [        {"label": "Uptime", "count": uptime_pct},        {"label": "Downtime", "count": downtime_pct},