Im trying to do a if (NumberValue here) <= 0 then but wont work without outputs?

I get no error in the output or what im trying print

script.Parent.ClickDetector.MouseClick:Connect(function(player)
	if script.Parent.Parent.Hits.BillboardGui.Damage.Text == "0" then --Problem
		print("Event fire attempt")
		game.ReplicatedStorage.Logg:FireClient(player)
	end
	if script.Parent.Parent.Player.Value == "" then
		script.Parent.Parent.Player.Value = player.Name
	end
	if player.Name == script.Parent.Parent.Player.Value then
	print(player.Name)
	print("jwilenqgnblqnbw")
	local equiped = player.AxeLvl.Value
	player.Character.Humanoid:EquipTool(player.Backpack:FindFirstChild(equiped))
	wait(0.150)
	if equiped == "lvl1" then
	script.Parent.Parent.Hits.BillboardGui.Damage.Text = script.Parent.Parent.Hits.BillboardGui.Damage.Text - 5
	end
	script.Parent.Chop1:Play()
	script.Parent.Parent.Particles.ParticleEmitter.Enabled = true
	wait(0.2)
	script.Parent.Parent.Particles.ParticleEmitter.Enabled = false
	wait(0.2)
	local axe = player.Character:FindFirstChild(equiped):Clone()
	axe.Parent = player.Backpack
	player.Character:FindFirstChild(equiped):Destroy()
	end
end)

You can't subtract numbers from a TextLabel, try making an IntValue, doing the subtracting on that then make the text of the TextLabel say whatever you want it to.