Function percentage

percentage(value: number, total: number): number
Calculates the percentage of a value relative to a total.
Parameters
- value: number
  The part value.
- total: number
  The total or whole value.
Returns number
The percentage (0–100) or 0 if total is 0.
Example
```
percentage(20, 100); // 20
percentage(30, 60);  // 50
```
- Defined in number/percentage.ts:12