comparative-fault 0.1.0

Apply US comparative-negligence rules (pure, modified 50%, modified 51%, contributory) to a damages award.
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# comparative-fault

Apply US comparative-negligence rules to a damages award.

When more than one party is at fault, the plaintiff's recovery is reduced by
their own share of responsibility. US states do this in four materially
different ways:

| Rule | Effect |
|---|---|
| Pure comparative | Reduce by fault share, no cut-off |
| Modified 50% bar | Reduce, but barred at 50% or more |
| Modified 51% bar | Reduce, but barred above 50% |
| Contributory | Any fault bars recovery entirely |

The two modified rules diverge at exactly a 50/50 split, which is a common
settlement posture: under a 50% bar the plaintiff takes nothing, under a 51%
bar they take half.

```rust
use comparative_fault::{net_recovery, Rule};

assert_eq!(net_recovery(100_000.0, 0.20, Rule::Pure), 80_000.0);
assert_eq!(net_recovery(100_000.0, 0.50, Rule::Modified50), 0.0);
assert_eq!(net_recovery(100_000.0, 0.50, Rule::Modified51), 50_000.0);
```

Estimates only; not legal advice. Reference calculator:
<https://worthmyclaim.com/>

## License

MIT