Calculadora de Repetição Espaçada — Formula
## How to Calculate Flashcard Retention
Retention rate measures how many flashcards you can recall correctly.
### Formula
**Retention Rate = (Correctly Recalled / Total Cards) x 100**
Aim for 85–95% retention. Below 85% means you are reviewing too many new cards. Above 95% means you can add more.
Retention rate measures how many flashcards you can recall correctly.
### Formula
**Retention Rate = (Correctly Recalled / Total Cards) x 100**
Aim for 85–95% retention. Below 85% means you are reviewing too many new cards. Above 95% means you can add more.
Exemplo Resolvido
A student has 100 flashcards, recalls 78 correctly after 5 study sessions.
- Retention rate = (78 / 100) x 100 = 78%
- Cards needing review = 100 - 78 = 22
- Cards learned per session = 78 / 5 = 15.6