DAX- Date Range vs Single Date

[bajracharya]

** Need Help 
I have a table with project Id, Date and Value

How can I write DAX to Display
If Single Date is Selected then display value from that month or the last entered value for the project
If Date is in Range then display value from the last month for each project or the last entered value for each project

projectID	value	date	Month
1	4	1/1/2019	Jan
1	98	2/1/2019	Feb
1	96	3/1/2019	Mar
1	92	4/1/2019	Apr
1	96	5/1/2019	May
1	94	6/1/2019	Jun
1	69	7/1/2019	Jul
1	98	8/1/2019	Aug
1	73	9/1/2019	Sep
1	73	10/1/2019	Oct
1	90	11/1/2019	Nov
1	96	12/1/2019	Dec
2	76	1/1/2019	Jan
2	110	2/1/2019	Feb
2	96	3/1/2019	Mar
2	25	4/1/2019	Apr
2	25	5/1/2019	May
2	26	6/1/2019	Jun
2	0	7/1/2019	Jul
2	206	8/1/2019	Aug
2	44	9/1/2019	Sep
2	100	10/1/2019	Oct
2	95	11/1/2019	Nov
2	70	12/1/2019	Dec
3	12	1/1/2019	Jan
3	8	2/1/2019	Feb
3	318	3/1/2019	Mar
3	125	4/1/2019	Apr
3	45	5/1/2019	May
3	358	6/1/2019	Jun
3	22	7/1/2019	Jul
3	48	8/1/2019	Aug
3	65	9/1/2019	Sep
3	78	10/1/2019	Oct
3	12	11/1/2019	Nov
3	57	12/1/2019	Dec