# getRunningTotal

The waterfall's running total after its last step (the value a total bar stands to); `undefined` on any other type.

Canonical: https://chart.syidax.com/ko/docs/methods/getRunningTotal/

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## 정의

```typescript
getRunningTotal(): Promise<number | undefined>
```

반환 타입: `Promise<number | undefined>`. 요소 등록이 끝난 뒤 메서드를 호출하고 Promise 결과를 await로 기다리세요.

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## 관련 차트

- [sy-waterfall-chart](https://chart.syidax.com/ko/docs/components/waterfall.md#method-getRunningTotal)