[IMP] mis_buidler: avoid non-sense % comparisons with base value close to 0

mis_builder/models/mis_builder.py

@@ -196,7 +196,8 @@ class mis_report_kpi(orm.Model):
                                         kpi.divider, kpi.dp,
                                         kpi.suffix, sign='+',
                                         context=context)
-            elif kpi.compare_method == 'pct' and base_value != 0:
+            elif kpi.compare_method == 'pct':
+                if round(base_value, kpi.dp) != 0:
                     return self._render_num(cr, uid, lang_id,
                                             value / base_value - 1,
                                             0.01, kpi.dp,