2% of bank then increase by 50% after win

I want a trigger that will place bet 2% of bank then increase each time it win by 50% till 3rd bet  then start betting from normal stake.

If it lose before the 3rd bet it will start from normal stake.

Example:

A bank of £5000.

£100 won
£150 won
£200 won

£100 won
£150 lost
£100 won.

etc, etc.

Any help?

At some point you actually have to help yourself. I think its reasonable when people are getting started but to keep plonking problems on the good hearted souls is a bit unreasonable. If you had tried and ran into a problem, and asked about a precise condition or process fair enough. Have a go first and you will get more help in the long run.

search 'staking' in the manual and read some of these triggers. You will start to understand how a staking trigger works and empower yourself.
http://marketfeeder.co.uk/solutions/staking-plans/

You've sent 59 posts, time to drop the trainer wheels.
Good luck.