Why won't the GUI close? Its keeps counting.

Here is my current code, its in local script .

local frame = script.Parent
local text = script.Parent:WaitForChild("TextLabel")

for i=1,5 do
	text.Text = "Loading Story Mode (1%)"
	wait(1)
	text.Text = "Loading Story Mode (5%)"
	wait(1)	
	text.Text = "Loading Story Mode (15%)"
	wait(1)
	text.Text = "Loading Story Mode (20%)"
	wait(1)
	text.Text = "Loading Story Mode (25%)"
	wait(1)
	text.Text = "Loading Story Mode (30%)"
	wait(1)
	text.Text = "Loading Story Mode (35%)"
	wait(1)
	text.Text = "Loading Story Mode (40%)"
	wait(1)
	text.Text = "Loading Story Mode (45%)"
	wait(1)
	text.Text = "Loading Story Mode (50%)"
	wait(1)
	text.Text = "Loading Story Mode (55%)"
	wait(1)
	text.Text = "Loading Story Mode (60%)"
	wait(1)
	text.Text = "Loading Story Mode (65%)"
	wait(1)
	text.Text = "Loading Story Mode (70%)"
	wait(1)
	text.Text = "Loading Story Mode (75%)"
	wait(1)
	text.Text = "Loading Story Mode (80%)"
	wait(1)
	text.Text = "Loading Story Mode (85%)"
	wait(1)
	text.Text = "Loading Story Mode (90%)"
	wait(1)
	text.Text = "Loading Story Mode (95%)"
	wait(1)
	text.Text = "Loading Story Mode (99%)"
	wait(1)
	text.Text = "Loading Story Mode (100%)"
end

frame:TweenPosition(UDim2.new(-1,0,0,0),"In","Quart")

You are not using the for loop correctly. What your code will do is load from 1% to 100% 5 times. If you want it to increase by 5% every second, you need to use the for loop differently. Here's an example:

local amtLoaded = 0

for i = 1, 5 do
    amtLoaded = amtLoaded + 5
    text.Text = "Loading Story Mode (" ..amtLoaded.. "%)"
    wait(1)
end

The for loop repeats whatever is inside of it the specified number of times. So in the sample above, it will add 5 to the variable amtLoaded each iteration and then change the text to the current percentage.