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 move from a hypothetical value of 80 to 92 is an absolute change of 12 and a percentage change of 15%.
Important: the numbers are fictional and are not associated with a security, issuer or current market price.
What this calculator does not tell you
- The sign shows direction: positive for an increase, negative for a decrease.
- The starting value must be greater than zero.
- The same formula works for prices, account values, ranges and other positive quantities.
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.