Formula
The formula is displayed so the result can be checked independently. PreBreakout does not use a hidden scoring model on this page.
Worked hypothetical example
A hypothetical long model from 50 to 55 on 20 units produces gross P/L of 100 before any entered costs.
Important: the numbers are fictional and are not associated with a security, issuer or current market price.
What this calculator does not tell you
- Enter any fees or costs you want included; the site does not estimate them.
- Tax treatment is not calculated.
- The result is arithmetic only and does not represent an account statement.
Market execution can differ from arithmetic inputs because of spreads, gaps, slippage, order types, broker constraints and other factors. This tool does not attempt to model those effects unless an input explicitly asks for a value.
How to use it for learning
Change one input at a time and observe how the result changes. This is especially useful for understanding sensitivity: wider stop distance changes position-size arithmetic, a taller pattern changes a measured-move result, and a larger reward-to-risk ratio changes the theoretical break-even win rate. The exercise is about the formula, not about identifying a trade.