diff --git a/bruno/price/Price Add.bru b/bruno/price/Price Add.bru
index 523bb67..13546e7 100644
--- a/bruno/price/Price Add.bru	
+++ b/bruno/price/Price Add.bru	
@@ -16,6 +16,6 @@ body:json {
     "type":"sell",
     "currency":"IDR",
     "value":36000,
-    "periods":"2025-01-01 18:32:35"
+    "period":"2025-01-01 18:32:35"
   }
 }
diff --git a/bruno/price/Price Edit.bru b/bruno/price/Price Edit.bru
index e840477..49fd720 100644
--- a/bruno/price/Price Edit.bru	
+++ b/bruno/price/Price Edit.bru	
@@ -17,6 +17,6 @@ body:json {
     "type":"buy",
     "currency":"IDR",
     "value":20000,
-    "periods":"2025-01-01 18:32:35"
+    "period":"2025-01-01 18:32:35"
   }
 }
diff --git a/modules/api/inventory.py b/modules/api/inventory.py
index 6b1de68..16c0ab8 100644
--- a/modules/api/inventory.py
+++ b/modules/api/inventory.py
@@ -15,7 +15,7 @@ class inventory:
         self.cursor.execute("BEGIN;")
         try:
             ls = []
-            self.cursor.execute("SELECT item.id AS item_id, item.name AS item_name, SUM(CASE WHEN inv.flow = 'sell' THEN price.value * inv.qty WHEN inv.flow = 'buy' THEN -price.value * inv.qty ELSE 0 END) AS profit, SUM(CASE WHEN inv.flow = 'buy' THEN inv.qty WHEN inv.flow = 'sell' THEN -inv.qty ELSE 0 END) AS current_qty FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.periods <= inv.when ORDER BY sub.periods DESC LIMIT 1) GROUP BY item.id, item.name ORDER BY item.name ASC;")
+            self.cursor.execute("SELECT item.id AS item_id, item.name AS item_name, SUM(CASE WHEN inv.flow = 'sell' THEN price.value * inv.qty WHEN inv.flow = 'buy' THEN -price.value * inv.qty ELSE 0 END) AS profit, SUM(CASE WHEN inv.flow = 'buy' THEN inv.qty WHEN inv.flow = 'sell' THEN -inv.qty ELSE 0 END) AS current_qty FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.period <= inv.when ORDER BY sub.period DESC LIMIT 1) GROUP BY item.id, item.name ORDER BY item.name ASC;")
             l1 = self.cursor.fetchall()
             c1 = 0
             for d1 in l1:
@@ -28,7 +28,7 @@ class inventory:
                     "profit"	: int(d1["profit"	]),
                     "history"	: []
                 })
-                self.cursor.execute("SELECT inv.id, inv.flow, DATE_FORMAT(inv.when, '%Y-%m-%d %H:%i:%S') AS `when`, DATE_FORMAT(price.periods, '%Y-%m-%d %H:%i:%S') AS price_periods, price.value AS price_value, inv.qty, (price.value * inv.qty) AS `total` FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.periods <= inv.when ORDER BY sub.periods DESC LIMIT 1 ) WHERE item.id = %s ORDER BY inv.when DESC; ", ( d1["item_id"], ) )
+                self.cursor.execute("SELECT inv.id, inv.flow, DATE_FORMAT(inv.when, '%Y-%m-%d %H:%i:%S') AS `when`, DATE_FORMAT(price.period, '%Y-%m-%d %H:%i:%S') AS price_period, price.value AS price_value, inv.qty, (price.value * inv.qty) AS `total` FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.period <= inv.when ORDER BY sub.period DESC LIMIT 1 ) WHERE item.id = %s ORDER BY inv.when DESC; ", ( d1["item_id"], ) )
                 l2 = self.cursor.fetchall()
                 c2 = 0
                 for d2 in l2:
@@ -37,7 +37,7 @@ class inventory:
                         "flow"	: d2["flow"	],
                         "when"	: d2["when"	],
                         "price"	: {
-                            "periods"	: d2["price_periods"	],
+                            "period"	: d2["price_period"	],
                             "value"	: d2["price_value"	]
                         },
                         "qty"	: d2["qty"	],
@@ -68,7 +68,7 @@ class inventory:
         id		= params["id"]
         self.cursor.execute("BEGIN;")
         try:
-            self.cursor.execute("SELECT item.id AS item_id, item.name AS item_name, SUM(CASE WHEN inv.flow = 'sell' THEN price.value * inv.qty WHEN inv.flow = 'buy' THEN -price.value * inv.qty ELSE 0 END) AS profit, SUM(CASE WHEN inv.flow = 'buy' THEN inv.qty WHEN inv.flow = 'sell' THEN -inv.qty ELSE 0 END) AS current_qty FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.periods <= inv.when ORDER BY sub.periods DESC LIMIT 1) WHERE item.id = %s GROUP BY item.id, item.name ORDER BY item.name ASC;", ( id, ) )
+            self.cursor.execute("SELECT item.id AS item_id, item.name AS item_name, SUM(CASE WHEN inv.flow = 'sell' THEN price.value * inv.qty WHEN inv.flow = 'buy' THEN -price.value * inv.qty ELSE 0 END) AS profit, SUM(CASE WHEN inv.flow = 'buy' THEN inv.qty WHEN inv.flow = 'sell' THEN -inv.qty ELSE 0 END) AS current_qty FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.period <= inv.when ORDER BY sub.period DESC LIMIT 1) WHERE item.id = %s GROUP BY item.id, item.name ORDER BY item.name ASC;", ( id, ) )
             d1 = self.cursor.fetchone()
             data = {
                 "item":{
@@ -79,7 +79,7 @@ class inventory:
                 "profit"	: int(d1["profit"	]),
                 "history"	: []
             }
-            self.cursor.execute("SELECT inv.id, inv.flow, DATE_FORMAT(inv.when, '%Y-%m-%d %H:%i:%S') AS `when`, DATE_FORMAT(price.periods, '%Y-%m-%d %H:%i:%S') AS price_periods, price.value AS price_value, inv.qty, (price.value * inv.qty) AS `total` FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.periods <= inv.when ORDER BY sub.periods DESC LIMIT 1 ) WHERE item.id = %s ORDER BY inv.when DESC; ", ( d1["item_id"], ) )
+            self.cursor.execute("SELECT inv.id, inv.flow, DATE_FORMAT(inv.when, '%Y-%m-%d %H:%i:%S') AS `when`, DATE_FORMAT(price.period, '%Y-%m-%d %H:%i:%S') AS price_period, price.value AS price_value, inv.qty, (price.value * inv.qty) AS `total` FROM inventory inv LEFT JOIN item ON inv.item = item.id LEFT JOIN item_price price ON price.id = (SELECT sub.id FROM item_price sub WHERE sub.item = item.id AND sub.type = inv.flow AND sub.period <= inv.when ORDER BY sub.period DESC LIMIT 1 ) WHERE item.id = %s ORDER BY inv.when DESC; ", ( d1["item_id"], ) )
             l2 = self.cursor.fetchall()
             c2 = 0
             for d2 in l2:
@@ -88,7 +88,7 @@ class inventory:
                     "flow"	: d2["flow"	],
                     "when"	: d2["when"	],
                     "price"	: {
-                        "periods"	: d2["price_periods"	],
+                        "period"	: d2["price_period"	],
                         "value"		: d2["price_value"	]
                     },
                     "qty"	: d2["qty"	],
diff --git a/modules/api/item.py b/modules/api/item.py
index 67785a3..69fd3e4 100644
--- a/modules/api/item.py
+++ b/modules/api/item.py
@@ -27,9 +27,9 @@ class item:
                         "sell":[]
                     }
                 })
-                self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`periods`, '%Y-%m-%d %H:%i:%S') AS `periods` from item_price WHERE `sku` = %s AND `type`='buy' ORDER BY periods DESC, id DESC; ", ( d1["sku"], ) )
+                self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`period`, '%Y-%m-%d %H:%i:%S') AS `period` from item_price WHERE `sku` = %s AND `type`='buy' ORDER BY period DESC, id DESC; ", ( d1["sku"], ) )
                 ls[c1]["price"]["buy" ] = self.cursor.fetchall()
-                self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`periods`, '%Y-%m-%d %H:%i:%S') AS `periods` from item_price WHERE `sku` = %s AND `type`='sell' ORDER BY periods DESC, id DESC; ", ( d1["sku"], ) )
+                self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`period`, '%Y-%m-%d %H:%i:%S') AS `period` from item_price WHERE `sku` = %s AND `type`='sell' ORDER BY period DESC, id DESC; ", ( d1["sku"], ) )
                 ls[c1]["price"]["sell"] = self.cursor.fetchall()
                 c1+=1
             loggorilla.prcss(APIADDR, "Giving response")
@@ -65,9 +65,9 @@ class item:
                     "sell":[]
                 }
             }
-            self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`periods`, '%Y-%m-%d %H:%i:%S') AS `periods` from item_price WHERE `sku` = %s AND `type`='buy' ORDER BY periods DESC, id DESC; ", ( sku, ) )
+            self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`period`, '%Y-%m-%d %H:%i:%S') AS `period` from item_price WHERE `sku` = %s AND `type`='buy' ORDER BY period DESC, id DESC; ", ( sku, ) )
             data["price"]["buy" ] = self.cursor.fetchall()
-            self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`periods`, '%Y-%m-%d %H:%i:%S') AS `periods` from item_price WHERE `sku` = %s AND `type`='sell' ORDER BY periods DESC, id DESC; ", ( sku, ) )
+            self.cursor.execute("SELECT `id`, `currency`, `value`, DATE_FORMAT(`period`, '%Y-%m-%d %H:%i:%S') AS `period` from item_price WHERE `sku` = %s AND `type`='sell' ORDER BY period DESC, id DESC; ", ( sku, ) )
             data["price"]["sell"] = self.cursor.fetchall()
             loggorilla.prcss(APIADDR, "Giving response")
             response["status"   ] = "success"
diff --git a/modules/api/price.py b/modules/api/price.py
index 715f049..a2acb08 100644
--- a/modules/api/price.py
+++ b/modules/api/price.py
@@ -14,7 +14,7 @@ class price:
         response        = {}
         self.cursor.execute("BEGIN;")
         try:
-            self.cursor.execute("SELECT `id`, `sku`, `type`, `currency`, `value`, DATE_FORMAT(`periods`, '%Y-%m-%d %H:%i:%S') AS `periods` FROM `item_price` ORDER BY periods DESC, id DESC;")
+            self.cursor.execute("SELECT `id`, `sku`, `type`, `currency`, `value`, DATE_FORMAT(`period`, '%Y-%m-%d %H:%i:%S') AS `period` FROM `item_price` ORDER BY period DESC, id DESC;")
             ls = self.cursor.fetchall()
             loggorilla.prcss(APIADDR, "Giving response")
             response["status"   ] = "success"
@@ -39,7 +39,7 @@ class price:
         id		= params["id"]
         self.cursor.execute("BEGIN;")
         try:
-            self.cursor.execute("SELECT `id`, `sku`, `type`, `currency`, `value`, DATE_FORMAT(`periods`, '%Y-%m-%d %H:%i:%S') AS `periods` FROM `item_price` WHERE id= %s ORDER BY periods DESC, id DESC;", (id,))
+            self.cursor.execute("SELECT `id`, `sku`, `type`, `currency`, `value`, DATE_FORMAT(`period`, '%Y-%m-%d %H:%i:%S') AS `period` FROM `item_price` WHERE id= %s ORDER BY period DESC, id DESC;", (id,))
             data = self.cursor.fetchone()
             loggorilla.prcss(APIADDR, "Giving response")
             response["status"   ] = "success"
@@ -65,11 +65,11 @@ class price:
         type            = params["type"		]
         currency	= params["currency"	]
         value		= params["value"	]
-        periods		= params["periods"	]
+        period		= params["period"	]
         self.cursor.execute("BEGIN;")
         try:
             loggorilla.prcss(APIADDR, "Inserting")
-            self.cursor.execute("INSERT INTO `item_price` VALUES (DEFAULT, %s, %s, %s, %s, %s) ;", (sku, type, currency, value, periods) )
+            self.cursor.execute("INSERT INTO `item_price` VALUES (DEFAULT, %s, %s, %s, %s, %s) ;", (sku, type, currency, value, period) )
             loggorilla.prcss(APIADDR, "Giving response")
             response["status"   ] = "success"
             response["desc"     ] = "data added"
@@ -94,11 +94,11 @@ class price:
         type            = params["type"		]
         currency	= params["currency"	]
         value		= params["value"	]
-        periods		= params["periods"	]
+        period		= params["period"	]
         self.cursor.execute("BEGIN;")
         try:
             loggorilla.prcss(APIADDR, "Updating")
-            self.cursor.execute("UPDATE `item_price` SET `sku` = %s,`type` = %s,`currency` = %s,`value` = %s,`periods` = %s WHERE `id` = %s ;", (sku, type, currency, value, periods, key) )
+            self.cursor.execute("UPDATE `item_price` SET `sku` = %s,`type` = %s,`currency` = %s,`value` = %s,`period` = %s WHERE `id` = %s ;", (sku, type, currency, value, period, key) )
             loggorilla.prcss(APIADDR, "Giving response")
             response["status"   ] = "success"
             response["desc"     ] = "data change"
diff --git a/sql/inv.sql b/sql/inv.sql
index 9287936..97f8b9f 100644
--- a/sql/inv.sql
+++ b/sql/inv.sql
@@ -11,7 +11,7 @@ CREATE TABLE `item_price` (
 	`type` VARCHAR(4) NOT NULL, -- buy, sell
 	`currency` VARCHAR(3) NOT NULL,
 	`value` INT(11) NOT NULL,
-	`periods` DATETIME NOT NULL,
+	`period` DATETIME NOT NULL,
 	PRIMARY KEY (`id`),
 	KEY `sku` (`sku`),
 	CONSTRAINT `item_price_fk_sku`