Nearly there Benny, just some final stuff, but i have a question regarding your posted figures.

You have 2 units @ 1.45, then you have, paid 2.90...no prob there.
But then you have profit of 0.90.

According to the spreadsheet calculations, on bet 1, it's profit of 3.80
If the initial bank was 100, less 2 bet amount, leaves 98.00
It paid 2.90, @ 2 units = 5.80
98.00 + 5.80 = new bank balance of 103.80

Where does the 0.90 figure ?