How to stop gun using more ammo than it should every time it is unequipped and re-equipped?

I'm currently attempting to make a gun, and it works well outside of one error; whenever it is unequipped and re-equipped, it uses 1 more ammo than it should per shot. For example; initially, it uses 1 ammo per shot; however, after is unequipped and re-equipped, it uses 2 ammo per shot; and after it is unequipped and re-equipped once more, it uses 3 ammo per shot, and so on. I'm currently using a NumberValue to determine the amount of ammo used per shot, and a RemoteEvent and a server-side script to register damage. This is the section of code that governs the amount of ammo subtracted per shot:

			script.Parent.Activated:Connect(function()
				if Ammo.Value>0 and not Reloading then 
					Ammo.Value = Ammo.Value-1 
			sound:play()
			if Mouse.Target.Parent:FindFirstChild("Humanoid") then 
			script.Parent.Damage:FireServer(Mouse.Target.Parent, 20)

If needed, here is the entire client-side script:

local tool = script.Parent
local player = game:GetService("Players").LocalPlayer
local Values = tool:WaitForChild("Values")
local Ammo = Values:WaitForChild("Ammo")
local MaxAmmo = 10
local mouse = player:GetMouse()
local Reloading = false
local UserInputService = game:GetService("UserInputService")
local pressed = UserInputService:IsMouseButtonPressed(Enum.UserInputType.MouseButton1)
reloadsound = Instance.new("Sound", workspace)
reloadsound.SoundId = "rbxassetid://269172810"
sound = Instance.new("Sound", workspace)
sound.SoundId = "rbxassetid://162043120"
script.Parent.Equipped:Connect(function(Mouse)
	Mouse.Icon = "rbxassetid://3324802476"
	local function Reload()
			Reloading = true
			reloadsound:play()
			Mouse.Icon = "rbxassetid://3324802476"
			wait(2)
			Ammo.Value = MaxAmmo
			Mouse.Icon = "rbxassetid://3324802476"
			Reloading = false
		end
			script.Parent.Activated:Connect(function()
				if Ammo.Value>0 and not Reloading then 
					Ammo.Value = Ammo.Value-1 
			sound:play()
			if Mouse.Target.Parent:FindFirstChild("Humanoid") then 
			script.Parent.Damage:FireServer(Mouse.Target.Parent, 20)

			end
		elseif Reloading == false then 
			Reload()
		end
		print(Ammo)
	end)
	local Input = game:GetService("UserInputService")
	Input.InputBegan:Connect(function(Key)
		if Key.KeyCode == Enum.KeyCode.R and Reloading == false and Ammo~= MaxAmmo then 
			reloadsound:play()
		Reload()
		end
		
	end)

	
end)

			

Is there any way to make the ammunition subtracted not increase itself every time the firearm is unequipped and re-equipped?