It prints on the output, however the value never changes, how do I fix this issue?

So, basically I was trying to make a script that changes a value randomly every few seconds. However though, it doesn't really work.

The value doesn't change, however it prints something on the output acting like the value has changed.

The script:

local BuyAndSellAmount = script.Parent
local number = script.RandomizeValue


while true do
	number.Value = math.random(1,6)
	wait(5)
	if number.Value == 1 then

		print("+1")
		BuyAndSellAmount.Value = BuyAndSellAmount.Value + 1
		
	elseif number.Value == 2 then
	
		print("+0.1")
		BuyAndSellAmount.Value = BuyAndSellAmount.Value +  0.1

	elseif number.Value == 3 then
		
		print("+2")
		BuyAndSellAmount.Value = BuyAndSellAmount.Value + 2

	elseif number.Value == 4 then
		
		print("-1")
		BuyAndSellAmount.Value = BuyAndSellAmount.Value - 1

	elseif number.Value == 5 then
		
		print("-0.1")
		BuyAndSellAmount.Value = BuyAndSellAmount.Value - 0.1

	elseif number.Value == 6 then

		
		print("-2")
		BuyAndSellAmount.Value = BuyAndSellAmount.Value - 2

    


	end	
end