Want to know why GBPUSD is going downwards for the next 2 hours?

Based on the last 12 Existing Home Sales events in United States, we expect a $590 movement on GBPUSD within the next 2 hours. We expect GBPUSD to trend downwards for the next 2 hours because the released value is < 4.78M Historical events that allowed us to draw this conclusion

22 Apr 00:00
20 Dec 02:00
22 Nov 02:00
24 Jul 00:00

All references to movement sizes are expressed assuming a lot size of 100,000 units (“standard account”).