diff --git a/models/mrp_mps.py b/models/mrp_mps.py
index fbcf63a..dae8ce2 100644
--- a/models/mrp_mps.py
+++ b/models/mrp_mps.py
@@ -60,15 +60,15 @@ class MrpProductionSchedule(models.Model):
                 ratio = ratios.get(self.product_id, 0.0)
                 
                 if ratio > 0:
-                    parent_diff = diff_qty / ratio
+                    parent_diff = round(diff_qty / ratio, 8)
                     
                     p_date_start, p_date_stop = parent_schedule.company_id._get_date_range(force_period=period_scale)[date_index]
                     p_exist = parent_schedule.forecast_ids.filtered(lambda f: f.date >= p_date_start and f.date <= p_date_stop)
                     p_old_qty_base = sum(p_exist.mapped('replenish_qty')) if p_exist else 0.0
                     
                     if hasattr(parent_schedule, 'packaging_id') and parent_schedule.packaging_id and parent_schedule.packaging_id.qty:
-                        p_old_qty_pack = p_old_qty_base / parent_schedule.packaging_id.qty
-                        parent_diff = parent_diff / parent_schedule.packaging_id.qty
+                        p_old_qty_pack = round(p_old_qty_base / parent_schedule.packaging_id.qty, 8)
+                        parent_diff = round(parent_diff / parent_schedule.packaging_id.qty, 8)
                     else:
                         p_old_qty_pack = p_old_qty_base
                         
@@ -76,6 +76,9 @@ class MrpProductionSchedule(models.Model):
                     if new_parent_qty < 0:
                         new_parent_qty = 0.0
                     
+                    # Round to the UoM rounding of the product before saving
+                    new_parent_qty = float_round(new_parent_qty, precision_rounding=parent_schedule.product_uom_id.rounding)
+                    
                     # Update parent with 'up' context. This propagates it all the way to the top recursively!
                     parent_schedule.with_context(propagate_direction='up').set_replenish_qty(date_index, new_parent_qty, period_scale)
 
@@ -91,18 +94,18 @@ class MrpProductionSchedule(models.Model):
                 ratio = ratios.get(child_schedule.product_id, 0.0)
                 
                 if ratio > 0:
-                    child_diff = diff_qty * ratio
+                    child_diff = round(diff_qty * ratio, 8)
                     
                     if hasattr(child_schedule, 'packaging_id') and child_schedule.packaging_id and child_schedule.packaging_id.qty:
                         packaging_qty = child_schedule.packaging_id.qty
-                        child_diff = child_diff / packaging_qty
+                        child_diff = round(child_diff / packaging_qty, 8)
                     
                     c_date_start, c_date_stop = child_schedule.company_id._get_date_range(force_period=period_scale)[date_index]
                     c_exist = child_schedule.forecast_ids.filtered(lambda f: f.date >= c_date_start and f.date <= c_date_stop)
                     c_old_qty_base = sum(c_exist.mapped('replenish_qty')) if c_exist else 0.0
                     
                     if hasattr(child_schedule, 'packaging_id') and child_schedule.packaging_id and child_schedule.packaging_id.qty:
-                        c_old_qty_pack = c_old_qty_base / child_schedule.packaging_id.qty
+                        c_old_qty_pack = round(c_old_qty_base / child_schedule.packaging_id.qty, 8)
                     else:
                         c_old_qty_pack = c_old_qty_base
                     
@@ -110,6 +113,9 @@ class MrpProductionSchedule(models.Model):
                     if new_child_qty_pack < 0:
                         new_child_qty_pack = 0.0
                     
+                    # Round to the UoM rounding of the product before saving
+                    new_child_qty_pack = float_round(new_child_qty_pack, precision_rounding=child_schedule.product_uom_id.rounding)
+                    
                     # Update child with 'down' context. This propagates it all the way to the bottom!
                     child_schedule.with_context(propagate_direction='down').set_replenish_qty(date_index, new_child_qty_pack, period_scale)