Why is the intvalue reset to its original price when changed?

Hi, I have a while true do a script that should make a value go up by 2, before then, 100 was subtracted from the value, and whenever I try to make the value go up by 2 it gets reset to the original value it was set before testing, someone please help

local Damage = 1
while true do
workspace.TestMap.Cash.Value += 2
wait(1.5)
end