Three dated flows
| A | B | |
|---|---|---|
| 1 | Date | Cash flow |
| 2 | 1/1/2024 | -1000 |
| 3 | 7/1/2024 | 600 |
| 4 | 1/1/2025 | 600 |
Formula: D2: =ROUND(XNPV(0.1,B2:B4,A2:A4),2)
Result: 117.46
The first flow sits on the start date and is not discounted; the others are discounted by their day counts over 365.