I have a place where if i deposit 2k they match me with 3k, then i need to coin in 450k in order to cash out

Machine pay back 99.78%
(8/5 As & 8s)

How do i calculate the chance of me going broke (losing all 5k) before completing my needed 450k coin in?

$0.50 credits vs $1 credits vs $5 credits