Hey i want to Add Something on Mad's Skript for my Server (He has the Credits).
I want that:
If i buy something with a command then i need to lose the Price of the Coins from my Balance.
Heres the Code from Mad:

Code (Skript):

1. #Official Skript of Mad
2. #Copyright [2017 Mad]
3. #Version: 1.0 Beta
4.  
5. #  ___                 _              
6. # |_ _|  _ __     __| |   ___  __  __
7. #  | |  | '_ \   / _` |  / _ \ \ \/ /
8. #  | |  | | | | | (_| | |  __/  >  <
9. # |___| |_| |_|  \__,_|  \___| /_/\_\
10. #
11. #
12.  
13. options:
14.     prefix: &a&lCoins&r &7»&r
15.     version: 1.0
16.    
17. variables:
18.     {coins.%player%} = 0
19.    
20. on first join:
21.     set {coins.%player%} to 0
22.    
23. #  ___  _____  ____  _  _  ___
24. # / __)(  _  )(_  _)( \( )/ __)
25. #( (__  )(_)(  _)(_  )  ( \__ \
26. # \___)(_____)(____)(_)\_)(___/
27. #
28.  
29. command /coins [<text>] [<player>] [<int>]:
30.     description: Help for skCoins.
31.     usage: /coins (add:remove:set:reset) (player) (value)
32.     executable by: players and console
33.     trigger:
34.         if arg-1 is not set:
35.             message ""
36.             message "&a&lCOINS"
37.             message ""
38.             message "&8● &7/coins add (player) (value) &a- Add player's coins"
39.             message "&8● &7/coins remove (player) (value) &a- Remove player's coins"
40.             message "&8● &7/coins set (player) (value) &a- Set player's coins"
41.             message "&8● &7/coins reset (player) &a- Reset player's coins"
42.             message ""
43.         if arg-1 is set:
44.             if player has permission "coins.admin":
45.                 if arg-1 is "add":
46.                     if arg-2 is not set:
47.                         message "&aCorrect Usage: &7/coins add (player) (value)"
48.                     if arg-2 is set:
49.                         if arg-3 is not set:
50.                             message "&aCorrect Usage: &7/coins add (player) (value)"
51.                         if arg-3 is set:
52.                             add arg-3 to {coins.%arg-2%}
53.                             message "{@prefix} &7Operation completed successfully!"
54.                             message "{@prefix} &7You have recived &a%arg-3%&7 coins." to arg-2
55.                 if arg-1 is "remove":
56.                     if arg-2 is not set:
57.                         message "&aCorrect Usage: &7/coins remove (player) (value)"
58.                     if arg-2 is set:
59.                         if arg-3 is not set:
60.                             message "&aCorrect Usage: &7/coins remove (player) (value)"
61.                         if arg-3 is set:
62.                             remove arg-3 from {coins.%arg-2%}
63.                             message "{@prefix} &7Operation completed successfully!"
64.                             message "{@prefix} &7You have lost &a%arg-3%&7 coins." to arg-2
65.                 if arg-1 is "set":
66.                     if arg-2 is not set:
67.                         message "&aCorrect Usage: &7/coins set (player) (value)"
68.                     if arg-2 is set:
69.                         if arg-3 is not set:
70.                             message "&aCorrect Usage: &7/coins set (player) (value)"
71.                         if arg-3 is set:
72.                             set {coins.%arg-2%} to arg-3
73.                             message "{@prefix} &7Operation completed successfully!"
74.                             message "{@prefix} &7You have now &a%arg-3%&7 coins." to arg-2
75.                 if arg-1 is "reset":
76.                     if arg-2 is not set:
77.                         message "&aCorrect Usage: &7/coins reset (player)"
78.                     if arg-2 is set:
79.                         set {coins.%arg-2%} to 0
80.                         message "{@prefix} &7You reset &a%arg-2%&7's coins!"
81.                         message "{@prefix} &7Your coins have been reset." to arg-2
82.             if player does not have permission "coins.admin":
83.                 message "&cYou don't have the permission."
84.                        
85. command /balance [<player>]:
86.     description: See the player's balance.
87.     usage: /balance <player>
88.     executable by: players and console
89.     trigger:
90.         if arg-1 is not set:
91.             message "{@prefix} &7Your balance is: &a%{coins.%player%}%&7."
92.         if arg-1 is set:
93.             message "{@prefix} &a%arg-1%&7's balance is: &a%{coins.%arg-1%}%&7."

I was inactive for a time so sorry i forgot a lot :/

--- Double Post Merged, Feb 5, 2017, Original Post Date: Feb 5, 2017 ---

Okay, here a better Question:
How is it possible that i lose coins, by entering a command?

--- Double Post Merged, Feb 5, 2017 ---

Ok got the one Thing now the other Thing is the "Bigger Than" dont works any help?

Code (Skript):

1. command /buy:
2.     trigger:
3.         if {coins.%player%} is bigger than 100:
4.         give 16 tnt named "&7&lTest" to player
5.         remove 100 from {coins.%player%}
6.     else:
7.         message "&6Test &8┃ &7Test."