Billboard Gui is opposite side?

My text label for my GUI is a damage indicator. I made a damage indicator everything is working fine but the numbers are like 02 instead of 20. Can someone help me fix it.

My code:

--Indicator from 2017. ( Edited for AbsoluteRightful ) Created by XxWingKing


local function TweenOut(Obj,properties)
    local TS = game:GetService("TweenService")
    local TI = TweenInfo.new(1,Enum.EasingStyle.Linear,Enum.EasingDirection.Out)
    local Tween = TS:Create(Obj,TI,properties)
    Tween:Play()
end

function Track(Humanoid)
    local Last = Humanoid.Health
    local function HealthChanged(Left)
        if Left < Last then
            local Part = Humanoid.Parent:FindFirstChildWhichIsA("BasePart")
            if Part then
                local EffectPart = Instance.new("Part",script)
                EffectPart.Name = "Effect"
                EffectPart.Size = Vector3.new(0, 0, 0)
                EffectPart.CFrame = Part.CFrame + Vector3.new(math.random(-5,5),math.random(3,5),math.random(-5,5))
                EffectPart.Anchored = true
                EffectPart.CanCollide = false
                EffectPart.Transparency = 1
                local BillboardGui = Instance.new("BillboardGui")
                BillboardGui.Size = UDim2.new(3, 0, 3, 0)
                BillboardGui.Adornee = EffectPart
                BillboardGui.AlwaysOnTop = true
                local TextLabel = Instance.new("TextLabel")
                TextLabel.BackgroundTransparency = 1
                TextLabel.Size = UDim2.new(1, 0, 1, 0)
                TextLabel.TextColor3 = Color3.new(255,0,0)
                local UseText = ""
                local DamageDone = math.floor(Last - Left)
                if DamageDone ~= math.huge then
                    if DamageDone < 100001 then
                        local Text = tostring(DamageDone)
                        local Length = string.len(Text)
                        --TextLabel.Rotation = 180
                        for i = 1,Length do
                            if string.sub(Text,i,i) == "1" then
                                UseText = "1"..UseText
                            elseif string.sub(Text,i,i) == "2" then
                                UseText = "2"..UseText
                            elseif string.sub(Text,i,i) == "3" then
                                UseText = "3"..UseText
                            elseif string.sub(Text,i,i) == "4" then
                                UseText = "4"..UseText
                            elseif string.sub(Text,i,i) == "5" then
                                UseText = "5"..UseText
                                elseif string.sub(Text,i,i) == "6" then
                                UseText = "6"..UseText
                            elseif string.sub(Text,i,i) == "7" then
                                UseText = "7"..UseText
                            elseif string.sub(Text,i,i) == "8" then
                                UseText = "8"..UseText
                            elseif string.sub(Text,i,i) == "9" then
                                UseText = "9"..UseText
                            elseif string.sub(Text,i,i) == "0" then
                                UseText = "0"..UseText
                            end
                        end
                    else
                        UseText = "OVERLOAD"
                    end
                else
                    UseText = "inf"
                end
                TextLabel.Text = UseText
                TextLabel.TextColor3 = Color3.new(255,0,0)
                TextLabel.TextScaled = true
                TextLabel.Font = Enum.Font.Arial
                TextLabel.Parent = BillboardGui
                BillboardGui.Parent = EffectPart
                Last = Left
                wait(0.5)
                if EffectPart then
                    TweenOut(BillboardGui,{Size = UDim2.new(0,0,0,0),StudsOffset = Vector3.new(0,0,0)})
                end
            end
        else
            Last = Left
        end
    end
    Humanoid.HealthChanged:connect(HealthChanged)
end

local D = game.Workspace:GetDescendants()
for i = 1,#D do
    if D[i]:IsA("Humanoid") then
        Track(D[i])
    end
end
function Added(item)
    if item:IsA("Humanoid") then
        Track(item)
    end
end
game.Workspace.DescendantAdded:connect(Added)