Is this a request or a question with a code? Anyways, this should help you:

Code (Skript):

1.  
2. options:
3.     p: &6&lOTOSAT &8► &f
4.     lapislazuli: 100
5.     lapiscevher: 2222222
6.     lapisblok: 222222222
7.  
8. every 30 seconds:
9.     loop all players:
10.         if {lapislazuliac.%loop-player%} is true:
11.             set {_inv} to loop-player's inventory
12.             if {_inv} contains lapis lazuli:
13.                 set {_lap} to amount of lapis lazuli in {_inv}
14.                 wait a tick
15.                 set {_lap.total} to {@lapislazuli} * {_lap}
16.                 wait a tick
17.                 add {_lap.total} to loop-player's balance
18.                 remove all lapis lazuli from {_inv}

 

I didnt try this:

Code (Skript):

1.  
2.  
3. options:
4.     p: &6&lOTOSAT &8► &f
5.     lapislazuli: 100
6.     cobb: 50
7.     iron ore: 150
8.     lapiscevher: 2222222
9.     lapisblok: 222222222
10.  
11. every 30 seconds:
12.     loop all players:
13.         if {autosell.%loop-player%} is true:
14.             set {_inv} to loop-player's inventory
15.             loop all items in the {_inv}:
16.                 add loop-value-2 to {_inventory::*}
17.             if {_inventory::*} contains lapis lazuli or cobblestone or iron ore: #The items that you want.
18.                 set {_lap} to amount of lapis lazuli in {_inv}
19.                 set {_cobb} to amount of cobblestone in {_inv}
20.                 set {_iron.ore} to amount of iron ore in {_inv}
21.                 wait a tick
22.                 set {_lap.total} to {@lapislazuli} * {_lap}
23.                 set {_cobb.total} to {@cobb} * {_cobb}
24.                 set {_iron.ore.total} to {@iron ore} * {_iron.ore}
25.                 wait a tick
26.                 set {_items.total} to {_lap.total} + {_cobb.total} + {_iron.ore.total}
27.                 add {_items.total} to loop-player's balance
28.                 send "&2You sold &a%{_items.total}%" to loop-player
29.                 remove loop-value from {_inv}
30.