I guess you say more probability, bet more, less probability bet less but, can you explain the formula?
No. It's not about proability alone.
It's about value. The statistical expectation.
The formula tells you to bet in the lower P(w) case.
Not because of probability alone but because of the expectation.
Selling naked options and collecting premium is a high probability trade.
But overall you end up ruined because more often than not, the loss is infinite.
Let's say you place 1:1 stop loss, take profit.
If you can get a P(win) > 1/2 then you win in the long run.
Value is about probabilities and payoffs.
Risk management is about avoiding variance to ruin you.
You can have an advantage but over bet.
In this case variance will make you broke anyway.
The formula tells you how much to bet.
It's the simplified kelly criterion.
If you have an edge then don't bet more than kelly (x%).
If you don't have an edge then don't bet.
That's the outcome of the formula.
#1 You need a reliable system
#2 That recognize positive expected value (Profitability)
#3 You need to know how to size your bet
#4 To max(Growth) and min(Ruin) (Risk)