Want to know why NZDUSD is going downwards today?

Based on the last 12 Existing Home Sales events in United States, we expect a $300 movement on NZDUSD within 2 hours following the event release at 21 Apr 14:00. We expect NZDUSD to trend downwards 2 hours following the event release at 21 Apr 14:00 if the released value is > 5.3M

Historical events that allowed us to draw this conclusion

20 Mar 14:00
22 Jan 15:00
19 Sep 14:00
21 Aug 14:00